Parker Drilling (PKDC) 10-K 10 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Mar. 03, 2014	Jun. 28, 2013
Document Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'PKD	'	'
Entity Registrant Name	'PARKER DRILLING CO /DE/	'	'
Entity Central Index Key	'0000076321	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	120,557,208	'
Entity Public Float	'	'	$582.60

CONSOLIDATED_STATEMENT_OF_OPER

CONSOLIDATED STATEMENT OF OPERATIONS (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]	'	'	'
Revenues	$874,172	$677,761	$686,234
Expenses:	'	'	'
Operating expenses	571,672	413,188	416,677
Depreciation and amortization	134,053	113,017	112,136
Total expenses	705,725	526,205	528,813
Total operating gross margin	168,447	151,556	157,421
General and administration expense	-68,025	-46,257	-31,567
Impairments and other charges	0	0	-170,000
Provision for reduction in carrying value of certain assets	-2,544	0	-1,350
Gain on disposition of assets, net	3,994	1,974	3,659
Total operating income (loss)	101,872	107,273	-41,837
Other income and (expense):	'	'	'
Interest expense	-47,820	-33,542	-22,594
Interest income	2,450	153	256
Loss on extinguishment of debt	-5,218	-2,130	0
Change in fair value of derivative positions	53	55	-110
Other	1,450	-832	-1,127
Total other expense	-49,085	-36,296	-23,575
Income (loss) before income taxes	52,787	70,977	-65,412
Income tax expense (benefit):	'	'	'
Current tax expense	12,909	18,042	33,608
Deferred tax expense (benefit)	12,699	15,837	-48,375
Total income tax expense (benefit)	25,608	33,879	-14,767
Net income (loss)	27,179	37,098	-50,645
Less: Net (loss) attributable to noncontrolling interest	164	-215	-194
Net income (loss) attributable to controlling interest	$27,015	$37,313	($50,451)
Basic earnings per share:	$0.23	$0.32	($0.43)
Diluted earnings per share:	$0.22	$0.31	($0.43)
Number of common shares used in computing earnings per share:	'	'	'
Basic (in shares)	119,284,468	117,721,135	116,081,590
Diluted (in shares)	121,224,550	119,093,590	116,081,590

CONSOLIDATED_STATEMENT_OF_COMP

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Comprehensive income:	'	'	'
Net income (loss)	$27,179	$37,098	($50,645)
Other comprehensive gain, net of tax:	'	'	'
Currency translation difference on related borrowings	-1,525	0	0
Currency translation difference on foreign currency net investments	3,051	0	0
Total other comprehensive gain, net of tax:	1,526	0	0
Comprehensive income	28,705	37,098	-50,645
Comprehensive (income) loss attributable to noncontrolling interest	198	215	194
Comprehensive income (loss) attributable to controlling interest	$28,903	$37,313	($50,451)

CONSOLIDATED_BALANCE_SHEET

CONSOLIDATED BALANCE SHEET (USD $)	Dec. 31, 2013	Dec. 31, 2012
Current assets:	'	'
Cash and cash equivalents	$148,689,000	$87,886,000
Accounts and notes receivable, net of allowance for bad debts of $12,853 in 2013 and $8,117 in 2012	257,889,000	168,615,000
Rig materials and supplies	41,781,000	29,422,000
Deferred costs	13,682,000	1,089,000
Deferred income taxes	9,940,000	8,742,000
Other tax assets	24,079,000	33,524,000
Other current assets	23,223,000	12,853,000
Total current assets	519,283,000	342,131,000
Property, plant and equipment, at cost:	'	'
Drilling equipment	1,418,582,000	1,232,891,000
Rental tools	395,626,000	337,874,000
Buildings, land and improvements	49,518,000	38,736,000
Other	61,273,000	57,185,000
Construction in progress	82,381,000	190,445,000
Property plant and equipment net	2,007,380,000	1,857,131,000
Less accumulated depreciation and amortization	1,136,024,000	1,063,934,000
Property, plant and equipment, net	871,356,000	793,197,000
Other assets:	'	'
Rig materials and supplies	10,221,000	12,930,000
Debt issuance costs	14,208,000	8,863,000
Deferred income taxes	102,420,000	95,295,000
Other assets	17,268,000	3,317,000
Total other assets	144,117,000	120,405,000
Total assets	1,534,756,000	1,255,733,000
Current liabilities:	'	'
Current portion of long-term debt	25,000,000	10,000,000
Accounts payable	90,033,000	62,090,000
Accrued liabilities	84,853,000	75,656,000
Accrued income taxes	7,266,000	4,120,000
Total current liabilities	207,152,000	151,866,000
Long-term debt	628,781,000	469,205,000
Other long-term liabilities	26,914,000	23,182,000
Long-term deferred tax liability	38,767,000	20,847,000
Commitments and contingencies (Note 15)	0	0
Stockholders' equity:	'	'
Preferred stock, $1 par value, 1,942,000 shares authorized, no shares outstanding	'	'
Common stock, $0.16 2/3 par value, authorized 280,000,000 shares, issued and outstanding, 120,491,164 shares (118,968,396 shares in 2012)	20,075,000	19,818,000
Capital in excess of par value	657,349,000	646,217,000
Accumulated deficit	-47,616,000	-74,631,000
Accumulated Other Comprehensive Income	1,888,000	0
Total controlling interest stockholders' equity	631,696,000	591,404,000
Noncontrolling interest	1,446,000	-771,000
Total equity	633,142,000	590,633,000
Total liabilities and stockholders' equity	$1,534,756,000	$1,255,733,000

CONSOLIDATED_BALANCE_SHEET_Par

CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Allowance for bad debts	$12,853	$8,117
Preferred stock, par value	$1	$1
Preferred stock, shares authorized	1,942,000	1,942,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.17	$0.17
Common stock, shares authorized	280,000,000	280,000,000
Common stock, shares issued	120,491,164	118,968,396
Common stock, shares outstanding	120,491,164	118,968,396

CONSOLIDATED_STATEMENT_OF_CASH

CONSOLIDATED STATEMENT OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
Net income (loss)	$27,179	$37,098	($50,645)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	134,053	113,017	112,136
Impairment of property, plant and equipment	0	0	170,000
Loss on extinguishment of debt	5,218	2,130	0
Gain on disposition of assets	-3,994	-1,974	-3,659
Deferred tax expense (benefit)	12,699	15,837	-48,375
Provision for reduction in carrying value of certain assets	2,544	0	1,350
Expenses not requiring cash	17,764	22,600	12,833
Change in assets and liabilities:	'	'	'
Accounts and notes receivable	-33,512	15,241	-6,841
Rig materials and supplies	1,754	344	-913
Other current assets	-11,715	-4,313	63,816
Accounts payable and accrued liabilities	-286	-2,657	-24,908
Accrued income taxes	10,454	-6,102	2,141
Other assets	-661	-1,522	-1,050
Net cash provided by operating activities	161,497	189,699	225,885
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'	'
Capital expenditures	-155,645	-191,543	-190,399
Proceeds from the sale of assets	8,218	3,937	5,535
Acquisition of ITS, net of cash acquired	-117,991	0	0
Proceeds from insurance claims	0	0	250
Net cash used in investing activities	-265,418	-187,606	-184,614
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from issuance of debt	350,000	130,000	50,000
Proceeds from draw on revolver credit facility	0	7,000	0
Repayments of long-term debt	-125,000	0	0
Repayments of senior notes	0	-125,000	0
Repayments of term loan	-50,000	-18,000	-21,000
Repayments of revolver	0	0	-25,000
Payments of debt issuance costs	-11,172	-4,859	-504
Payments of debt extinguishment costs	0	-555	0
Proceeds from stock options exercised	0	0	183
Excess tax benefit (expense) from stock-based compensation	896	-662	1,488
Net cash provided by (used in) financing activities	164,724	-12,076	5,167
Net increase (decrease) in cash and cash equivalents	60,803	-9,983	46,438
Cash and cash equivalents at beginning of year	87,886	97,869	51,431
Cash and cash equivalents at end of year	148,689	87,886	97,869
Supplemental cash flow information:	'	'	'
Interest paid	42,236	37,405	32,785
Income taxes paid	$17,036	$40,234	$21,742

CONSOLIDATED_STATEMENT_OF_STOC

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total Controlling Stockholders' Equity [Member]	Noncontrolling Interest [Member]
In Thousands, unless otherwise specified
Balances at Dec. 31, 2010	$588,066	$19,397	$630,409	($61,493)	'	$588,313	($247)
Balances, shares at Dec. 31, 2010	'	116,369	'	'	'	'	'
Activity in employees' stock plans, shares	'	692	'	'	'	'	'
Activity in employees' stock plans	-232	111	-343	'	'	-232	'
Excess tax benefit from stock based compensation	988	'	988	'	'	988	'
Amortization of restricted stock plan compensation	5,988	'	5,988	'	'	5,988	'
Comprehensive Income:	'	'	'	'	'	'	'
Net income	-50,645	'	'	-50,451	'	-50,451	-194
Other comprehensive income (loss):	0	'	'	'	'	'	'
Other, net	-115	'	'	'	'	'	-115
Balances at Dec. 31, 2011	544,050	19,508	637,042	-111,944	'	544,606	-556
Balances, shares at Dec. 31, 2011	'	117,061	'	'	'	'	'
Activity in employees' stock plans, shares	'	1,907	'	'	'	'	'
Activity in employees' stock plans	2,930	310	2,620	'	'	2,930	'
Excess tax benefit from stock based compensation	-662	'	-662	'	'	-662	'
Amortization of restricted stock plan compensation	7,217	'	7,217	0	'	7,217	0
Comprehensive Income:	'	'	'	'	'	'	'
Net income	37,098	'	'	37,313	'	37,313	-215
Other comprehensive income (loss):	0	'	'	'	'	'	'
Balances at Dec. 31, 2012	590,633	19,818	646,217	-74,631	'	591,404	-771
Balances, shares at Dec. 31, 2012	'	118,968	'	'	'	'	'
Activity in employees' stock plans, shares	'	1,523	'	'	'	'	'
Activity in employees' stock plans	1,062	257	805	'	'	1,062	'
Excess tax benefit from stock based compensation	896	'	896	'	'	896	'
Amortization of restricted stock plan compensation	9,431	'	9,431	'	'	9,431	'
Fair value of acquired noncontrolling interest	2,680	'	'	'	'	'	2,680
Distributions to noncontrolling interest	-265	'	'	'	'	'	-265
Comprehensive Income:	'	'	'	'	'	'	'
Net income	27,179	'	'	27,015	'	27,015	164
Other comprehensive income (loss):	1,526	'	'	'	1,888	1,888	-362
Balances at Dec. 31, 2013	$633,142	$20,075	$657,349	($47,616)	$1,888	$631,696	$1,446
Balances, shares at Dec. 31, 2013	'	120,491	'	'	'	'	'

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Nature of Operations — Parker Drilling, together with its subsidiaries, is an international provider of contract drilling and drilling-related services and rental tools. We have operated in over 50 countries since beginning operations in 1934, making us among the most geographically experienced drilling contractors and rental tools providers in the world. We currently have operations in 24 countries, 10 of which we entered through our acquisition in 2013 of International Tubular Services Limited and certain of its affiliates (collectively, ITS) and other related assets (the ITS Acquisition). We own and operate drilling rigs and drilling-related equipment and also perform drilling-related services, referred to as Operations & Maintenance (O&M) work, for customer-owned drilling rigs on a contracted basis. We have extensive experience and expertise in drilling geologically difficult wells and in managing the logistical and technological challenges of operating in remote, harsh and ecologically sensitive areas. Our rental tools business supplies premium equipment to operators on land and offshore in the U.S. and select international markets. We have significant knowledge of the equipment needs of drilling operators and the logistical and product quality requirements of an effective rental tools supplier. We believe we are among the industry leaders in quality, health, safety and environmental practices.
	Our business is currently comprised of five operating segments: Rental Tools, U.S. Barge Drilling, U.S. Drilling, International Drilling, and Technical Services. Our rental tools business provides premium rental tools for land and offshore oil and natural gas drilling and workover and production applications. Tools we provide include drill pipe, heavy-weight drill pipe, tubing, high-torque connections, BOPs, drill collars, casing running systems, tools for fishing services and more. Our U.S. barge drilling business operates barge rigs that drill for oil and natural gas in the shallow waters in and along the inland waterways and coasts of Louisiana, Alabama, and Texas. Our U.S. drilling business primarily consists of two new-design arctic-class drilling rigs in Alaska intended to address the challenges presented by the remote location, harsh climate and sensitive environment that characterize the Alaskan North Slope in addition to O&M work in support of ExxonMobil’s Santa Ynez Unit offshore platform operations located in the Channel Islands region of California. Our international drilling business includes operations related to Parker-owned and customer-owned rigs. Operations related to customer rigs includes operations and maintenance and other project management services, such as labor, maintenance, and logistics for operators who own their own drilling rigs, but choose Parker Drilling to operate the rigs for them. Our Technical services business includes engineering and related project services during Front End Engineering Design (FEED), pre-FEED and concept development phases of customer-owned drilling facility projects. During the EPCI phase we focus primarily on drilling systems engineering, procurement, commissioning and installation and we typically provide customer support during construction.
	At December 31, 2013, our marketable rig fleet consisted of 13 barge drilling rigs and 23 land rigs located in the United States, Latin America and the EMEA regions.
	Consolidation — The consolidated financial statements include the accounts of the Company and subsidiaries in which we exercise control or have a controlling financial interest, including entities, if any, in which the Company is allocated a majority of the entity’s losses or returns, regardless of ownership percentage. If a subsidiary of Parker Drilling has a 50 percent interest in an entity but Parker Drilling’s interest in the subsidiary or the entity does not meet the consolidation criteria described above, then that interest is accounted for under the equity method.
	Noncontrolling Interest — We apply accounting standards related to noncontrolling interests for ownership interests in our subsidiaries held by parties other than Parker Drilling. The entities that comprise the noncontrolling interest include Parker SMNG Drilling Limited Liability Company and Primorsky Drill Rig Services B.V. We report noncontrolling interest as equity on the consolidated balance sheets and report net income (loss) attributable to controlling interest and to noncontrolling interest separately on the consolidated statements of operations.
	Reclassifications — Certain reclassifications have been made to prior period amounts to conform with the current period presentation. These reclassifications did not materially affect our consolidated financial results.
	Revenue Recognition — Contract drilling revenues and expenses, comprised of daywork drilling contracts, call-outs against MSAs and engineering and related project service contracts, are recognized as services are performed and collection is reasonably assured. For certain contracts, we receive payments contractually designated for the mobilization of rigs and other drilling equipment. Mobilization payments received, and direct costs incurred for the mobilization, are deferred and recognized over the term of the related drilling contract; however, costs incurred to relocate rigs and other drilling equipment to areas in which a contract has not been secured are expensed as incurred. Reimbursements received for out-of-pocket expenses are recorded as both revenues and direct costs. For contracts that are terminated prior to the specified term, early termination payments received by us are recognized as revenues when all contractual requirements are met. Revenues from rental activities are recognized ratably over the rental term which is generally less than six months. Construction contract revenues and costs are recognized on a percentage of completion basis utilizing the cost-to-cost method.
	During 2013 the Company entered into a FEED contract including long-lead equipment procurement services accounted for under the milestone method of revenue recognition. Milestone payments are based on achievement of specified procurement coordination and delivery events in regards to our customer's newly manufactured drilling rig. The quantity of specific long-lead items to be procured is spelled out in the contract and the payment terms are identified with each piece of equipment as well as each specific milestone. Management concluded that each of these payments, constitute substantive milestones. This conclusion was based primarily on the facts that (i) each triggering event represents a specific outcome that can be achieved only through successful performance by the Company of one or more of its deliverables, (ii) achievement of each triggering event was subject to inherent risk and uncertainty and would result in additional payments becoming due to the Company, (iii) each of the milestone payments is non-refundable, (iv) substantial effort is required to complete each milestone, (v) the amount of each milestone payment is reasonable in relation to the value created in achieving the milestone, and (vi) the milestone payments relate solely to past performance.
	Reimbursable Costs — The Company recognizes reimbursements received for out-of-pocket expenses incurred as revenues and accounts for out-of-pocket expenses as direct operating costs. Such amounts totaled $69.7 million, $44.9 million, and $64.2 million during the years ended December 31, 2013, 2012, and 2011, respectively. Additionally, the Company typically receives a nominal handling fee, which is recognized as earned in revenues in our consolidated statement of operations.
	Use of Estimates — The preparation of financial statements in accordance with U.S. GAAP requires us to make estimates and assumptions that affect our reported amounts of assets and liabilities, our disclosure of contingent assets and liabilities at the date of the financial statements, and our revenue and expenses during the periods reported. Estimates are typically used when accounting for certain significant items such as legal or contractual liability accruals, mobilization and deferred mobilization, revenue and cost accounting for projects that follow the percentage of completion method, self-insured medical/dental plans, and other items requiring the use of estimates. Estimates are based on a number of variables which may include third party valuations, historical experience, where applicable, and assumptions that we believe are reasonable under the circumstances. Due to the inherent uncertainty involved with estimates, actual results may differ from management estimates.
	Purchase price allocation — We allocate the purchase price of an acquired business to its identifiable assets and liabilities based on estimated fair values at the transaction date. Transaction and integration costs associated with an acquisition are expensed as incurred. The excess of the purchase price over the amount allocated to the assets and liabilities, if any, is recorded as goodwill. We use all available information to estimate fair values, including quoted market prices, the carrying value of acquired assets, and widely accepted valuation techniques such as discounted cash flows. We typically engage third-party appraisal firms to assist in fair value determination of inventories, identifiable intangible assets, and any other significant assets or liabilities. Judgments are made in determining the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, which can materially impact our results of operations.
	Intangible Assets – We recorded $10.0 million and $0.2 million, upon the ITS Acquisition, to recognize the fair values of definite and indefinite lived intangible assets, respectively. Preliminary estimates of fair value of identifiable assets acquired and liabilities assumed in the ITS Acquisition were based on management’s estimates, judgments and assumptions and are subject to change upon final valuation. As of December 31, 2013, the fair value estimate of the definite lived and indefinite lived intangibles have been adjusted to $8.5 million and zero, respectively. Definite lived intangible assets recorded in connection with the ITS Acquisition primarily relate to trade names, customer relationships, and developed technology and will be amortized over a weighted average period of approximately 3 years. See Note 2 - Acquisition of ITS for further discussion of the ITS Acquisition and preliminary fair value estimates.
	Cash and Cash Equivalents — For purposes of the consolidated balance sheets and the consolidated statements of cash flows, the Company considers cash equivalents to be highly liquid debt instruments that have a remaining maturity of three months or less at the date of purchase.
	Accounts Receivable and Allowance for Doubtful Accounts — Trade accounts receivable are recorded at the invoice amount and typically do not bear interest. The allowance for doubtful accounts is estimated for losses that may occur resulting from disputed amounts and the inability of our customers to pay amounts owed. We estimate the allowance based on historical write-off experience and information about specific customers. We review individually, for collectability, all balances over 90 days past due as well as balances due from any customer with respect to which we have information leading us to believe that a risk exist for potential collection.
	Account balances are charged off against the allowance when we believe it is probable the receivable will not be recovered. We do not have any off-balance-sheet credit exposure related to customers.
		December 31,
		2013			2012
		(Dollars in Thousands)
	Trade	$	270,498		$	176,082
	Notes receivable	244			650
	Allowance for doubtful accounts(1)	(12,853		)	(8,117		)
	Total accounts and notes receivable, net of allowance for bad debt	$	257,889		$	168,615
	-1	Additional information on the allowance for doubtful accounts for the years ended December 31, 2013, 2012 and 2011 is reported on Schedule II — Valuation and Qualifying Accounts.
	Property, Plant and Equipment — Property, plant and equipment is carried at cost. Maintenance and repair costs are expensed as incurred. The cost of upgrades and replacements is capitalized. The Company capitalizes software developed or obtained for internal use. Accordingly, the cost of third-party software, as well as the cost of third-party and internal personnel that are directly involved in application development activities, are capitalized during the application development phase of new software systems projects. Costs during the preliminary project stage and post-implementation stage of new software systems projects, including data conversion and training costs, are expensed as incurred. We account for depreciation of property, plant and equipment on the straight line method over the estimated useful lives of the assets after provision for salvage value. Depreciation, for tax purposes, utilizes several methods of accelerated depreciation. Depreciable lives for different categories of property, plant and equipment are as follows:
	Land drilling equipment		3 to 20 years
	Barge drilling equipment		3 to 20 years
	Drill pipe, rental tools and other		4 to 10 years
	Buildings and improvements		5 to 30 years
	Impairment — We review the carrying amounts of long-lived assets for potential impairment annually, typically during the fourth quarter, or when events occur or circumstances change that indicate the carrying value of such assets may not be recoverable. We determine recoverability by evaluating the undiscounted estimated future net cash flows. When impairment is indicated, we measure the impairment as the amount by which the assets’ carrying value exceeds its fair value. Management considers a number of factors such as estimated future cash flows from the assets, appraisals and current market value analysis in determining fair value. Assets are written down to fair value if the final estimate of current fair value is below the net carrying value.
	Capitalized Interest — Interest from external borrowings is capitalized on major projects until the assets are ready for their intended use. Capitalized interest is added to the cost of the underlying asset and is amortized over the useful lives of the assets in the same manner as the underlying assets. Capitalized interest costs reduce net interest expense in the consolidated statements of operations. During 2013, 2012 and 2011, capitalized interest costs were $2.4 million, $10.2 million and $19.3 million, respectively.
	Assets held for sale — We classify an asset as held for sale when the facts and circumstances meet the criteria for such classification, including the following: (a) we have committed to a plan to sell the asset, (b) the asset is available for immediate sale, (c) we have initiated actions to complete the sale, including locating a buyer, (d) the sale is expected to be completed within one year, (e) the asset is being actively marketed at a price that is reasonable relative to its fair value, and (f) the plan to sell is unlikely to be subject to significant changes or termination.
	Rig Materials and Supplies — Because our international drilling generally occurs in remote locations, making timely outside delivery of spare parts uncertain, a complement of parts and supplies is maintained either at the drilling site or in warehouses close to the operation. During periods of high rig utilization, these parts are generally consumed and replenished within a one-year period. During a period of lower rig utilization in a particular location, the parts, like the related idle rigs, are generally not transferred to other international locations until new contracts are obtained because of the significant transportation costs that would result from such transfers. We classify those parts which are not expected to be utilized in the following year as long-term assets. Additionally, our international rental tools business holds machine shop consumables and steel stock for manufacture in our machine shops and inspection and repair shops. Rig materials and supplies are valued at the lower of cost or market value.
	Deferred Costs — We defer costs related to rig mobilization and amortize such costs over the term of the related contract. The costs to be amortized within twelve months are classified as current.
	Debt Issuance Costs — We typically defer costs associated with issuance of indebtedness, and amortize those costs over the term of the related debt using the effective interest method.
	Income Taxes — Income taxes are accounted for under the asset and liability method and have been provided based upon tax laws and rates in effect in the countries in which operations are conducted and income is earned. There is little or no expected relationship between the provision for or benefit from income taxes and income or loss before income taxes as the countries in which we operate have taxation regimes that vary not only with respect to nominal rate, but also in terms of the availability of deductions, credits, and other benefits. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences are expected to be recovered or settled and the effect of changes in tax rates is recognized in income in the period in which the change is enacted. Accordingly, the impact of the Mexican tax reform, which was enacted October 31, 2013, has been recognized in 2013. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized and changes in recognition or measurement are reflected in the period in which the change in judgment occurs.
	Earnings (Loss) Per Share (EPS) — Basic earnings (loss) per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. The effects of dilutive securities, stock options, unvested restricted stock and convertible debt are included in the diluted EPS calculation, when applicable.
	Concentrations of Credit Risk — Financial instruments, that potentially subject the Company to concentrations of credit risk consist primarily of trade receivables with a variety of national and international oil and natural gas companies. We generally do not require collateral on our trade receivables.
	At December 31, 2013 and 2012, we had deposits in domestic banks in excess of federally insured limits of approximately $104.3 million and $12.2 million, respectively. The increase is primarily because as of January 1, 2013, all regular checking account deposits are only guaranteed up to $250,000 at each institution while prior to January 1, 2013, all regular checking account deposits were guaranteed, except investments. In addition, we had deposits in foreign banks, which were not insured at December 31, 2013 and 2012 of $50.1 million and $34.5 million, respectively.
	Our customer base primarily consists of major, independent and national oil and natural gas companies and integrated service providers. We depend on a limited number of significant customers. Our largest customer, Exxon Neftegas Limited constituted 15.6 percent of our revenues for 2013.
	Fair value measurements— For purposes of recording fair value adjustments for certain financial and non-financial assets and liabilities, and determining fair value disclosures, we estimate fair value at a price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal market for the asset or liability. Our valuation technique requires inputs that we categorize using a three-level hierarchy, from highest to lowest level of observable inputs, as follows: (1) unadjusted quoted prices for identical assets or liabilities in active markets (Level 1), (2) direct or indirect observable inputs, including quoted prices or other market data, for similar assets or liabilities in active markets or identical assets or liabilities in less active markets (Level 2) and (3) unobservable inputs that require significant judgment for which there is little or no market data (Level 3). When multiple input levels are required for a valuation, we categorize the entire fair value measurement according to the lowest level of input that is significant to the measurement even though we may have also utilized significant inputs that are more readily observable.
	Derivative Financial Instruments — We periodically use derivative instruments to manage risks associated with changes in associated interest rate fluctuations in connection with our Secured Credit Agreement (see Note 9, Derivative Financial Instruments). These derivative instruments, which consist of variable-to-fixed interest rate swaps, are not designated as hedges. Accordingly, the change in the fair value of the interest rate swaps is recognized in earnings at each reporting period.
	Foreign Currency — In our international rental tool business, for certain subsidiaries and branches outside the U.S., the local currency is the functional currency. The financial statements of these subsidiaries and branches are translated into U.S. dollars as follows: (i) assets and liabilities at month-end exchange rates; (ii) income, expenses and cash flows at monthly average exchange rates or exchange rates in effect on the date of the transaction; and (iii) stockholders’ equity at historical exchange rates. For those subsidiaries where the local currency is the functional currency, the resulting translation adjustment is recorded as a component of accumulated other elements of comprehensive income (loss) in the accompanying consolidated balance sheets.
	Stock-Based Compensation — Under our long term incentive plans, we grant restricted stock awards (RSA), restricted stock units (RSU) and performance-based award units (PAU). Our RSUs and RSAs are service-based awards and compensation expense is recognized ratably over the applicable vesting period, which is typically three years. The grant-date fair value of nonvested RSAs and RSUs is determined based on the closing trading price of the company’s shares on the grant date. Our RSAs and RSUs are settled in stock upon vesting. Share-based compensation expense is recognized, net of an estimated forfeiture rate, which is based on historical experience and adjusted, if necessary, in subsequent periods based on actual forfeitures. Our PAU awards contain market conditions which are based on our performance against our peers with regard to relative total shareholder return (TSR) and absolute and relative return on capital employed (ROCE). The effect of the market condition is reflected in the grant-date fair value of the award using a lattice model for valuation. PAUs can be settled in cash or stock, or a combination of cash and stock. We evaluate the terms of each PAU award to determine if the award should be accounted for as equity or a liability under the stock compensation rules of U.S. GAAP. Compensation costs for PAUs is recognized ratably over the service period.
	We recognize share-based compensation expense in the same financial statement line item as cash compensation paid to the respective employees. Tax deduction benefits for awards in excess of recognized compensation costs are reported as a financing cash flow.

Acquisitions_of_ITS

Acquisitions of ITS	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Acquisition of ITS	'
	Acquisition of ITS
	On April 22, 2013 we acquired International Tubular Services Limited and certain of its affiliates (collectively, ITS) and other related assets (the ITS Acquisition) for an initial purchase price of $101.0 million paid at the closing of the ITS Acquisition. An additional $24.0 million was deposited into an escrow account, which will either be paid to the seller or to us, as the case may be, in accordance with the Agreement. As of December 31, 2013 $5.0 million of escrow funds has been released to the seller. The ITS Acquisition closed simultaneously with the execution of the agreement on April 22, 2013.
	Fair value of Consideration Transferred
	The following details the fair value of the consideration transferred to effect the ITS Acquisition (dollars in thousands).
	Cash paid to, or on behalf of, ITS and its equity holders	$	101,000
	Cash deposited in escrow	19,000
	Fair value of contingent consideration deposited in escrow for assets not acquired (1)	5,000
	Total fair value of the consideration transferred	$	125,000
	(1)    Based on the terms of the acquisition agreement, $5.0 million of the $24.0 million in escrow to be paid to the seller is contingent upon certain future liabilities that could become due by ITS in certain jurisdictions. Any payments in relation to these liabilities will be deducted from the $5.0 million escrow amount and the net balance of the escrow will be paid to the seller. We estimate that the entire $5.0 million in escrow will be paid to the seller, and therefore, the estimated fair value of the consideration in escrow related to these liabilities is $5.0 million. We do not expect to receive any amount back from escrow, and therefore did not record a receivable from the escrow. Any changes to the fair value of the contingent consideration in the future of less than $5.0 million will result in recording a receivable from escrow. The receivable will be recorded at fair value. As of December 31, 2013, the fair value of the receivable is $0.0 million.
	Preliminary Allocation of Consideration Transferred to Net Assets Acquired
	Preliminary estimates of fair value of identifiable assets acquired and liabilities assumed in the ITS Acquisition were based on management’s estimates, judgments and assumptions and are subject to change upon final valuation. As of December 31, 2013, the fair value estimate of certain identifiable assets acquired and liabilities assumed has been adjusted. These estimates, judgments and assumptions are subject to change upon final valuation and should be treated as preliminary values. Management estimated that the fair value of the net assets acquired less noncontrolling interest equals consideration paid. Therefore, there was no goodwill recorded.
	The final allocation of consideration will include changes in (1) amounts deposited in escrow, (2) estimated fair values of property and equipment, (3) allocations to intangible assets and liabilities, (4) changes in contingent consideration, and (5) other assets and liabilities. These amounts will be finalized as soon as possible, but no later than one year from the acquisition date.
		April 22, 2013
		(In thousands)
	Cash and cash equivalents	$	7,009
	Accounts and notes receivable, net (1)	50,043
	Other current assets	1,803
	Accounts payable and accrued liabilities	(39,156		)
	Accrued income taxes	(1,251		)
	Working capital excluding rig materials and supplies	18,448
	Rig materials and supplies	11,514
	Property, plant and equipment, net (2)	73,863
	Investment in joint venture	4,134
	Other noncurrent assets	2,818
	Total tangible assets	110,777
	Deferred income tax assets - current	222
	Deferred income tax assets - noncurrent (3)	11,249
	Intangible assets (4)	8,500
	Total assets acquired	130,748
	Other long-term liabilities	(211		)
	Long-term deferred tax liability	(2,856		)
	Net assets acquired	127,681
	Less: Noncontrolling interest (5)	(2,681		)
	Total consideration transferred	$	125,000
	(1) Gross contractual amounts receivable totaled $55.9 million as of the acquisition date.
	(2) We recorded an adjustment of $40.2 million to reduce the historical carrying value of the acquired property, plant and equipment to its estimated fair value.
	(3) In connection with the ITS Acquisition, we recorded a $5.0 million adjustment to increase deferred income tax assets primarily related to the differences between acquisition date estimated fair value and tax basis of acquired property, plant and equipment.
	(4) We recorded $8.5 million to reflect the estimated fair value of definite lived intangible assets recognized in connection with the ITS Acquisition. Our depreciation and amortization expense will reflect this valuation adjustment as the definite lived intangible assets are amortized in future periods. Definite lived intangible assets recorded in connection with the ITS Acquisition, which primarily relate to trade names, customer relationships, and developed technology will be amortized over a weighted average period of approximately 3.4 years.
	(5) We recorded an adjustment of $1.0 million to write-down the noncontrolling interest to its estimated fair value. The estimated fair value of the noncontrolling interest was calculated as a percentage of the net assets acquired related to certain subsidiaries in which ITS holds less than a 100 percent controlling interest. The fair value of the net assets of these subsidiaries was primarily based on the income approach valuation model.
	Acquisition Related Costs
	Acquisition-related transaction costs consisted of various advisory, compliance, legal, accounting, valuation and other professional or consulting fees totaled approximately $22.5 million for the year ended December 31, 2013. The costs were expensed as incurred and are included in general and administrative expense in our consolidated statement of operations.  Debt issuance costs of $5.4 million associated with our $125 million term loan, fully funded by Goldman Sachs Bank USA as Sole Lead Arranger and Administrative Agent (the Goldman Term Loan) issued on April 18, 2013 were initially deferred to be amortized to interest expense over the life of the term loan. However, the Goldman Term Loan was repaid on July 30, 2013 with net proceeds from the issuance of $225.0 million aggregate principal amount of 7.50% Senior Notes due August 1, 2020 (7.50% Notes) (see Note 8 - Long-Term Debt, for further discussion) and the unamortized deferred costs of $5.2 million were expensed during the 2013 third quarter.
	Supplemental Pro forma Results
	ITS’ results of operations have been included in our financial statements for periods subsequent to April 22, 2013, the effective date of the ITS Acquisition. ITS contributed revenues of $88.0 million and net income of approximately $10.0 million to Parker Drilling for the period from the closing of the ITS Acquisition through December 31, 2013.
	The following unaudited supplemental pro forma results present consolidated information for the years ended December 31, 2013 and 2012 as if the ITS Acquisition had been completed on January 1, 2012.  The pro forma results have been calculated after applying our accounting policies and include, among others, (i) the amortization associated with the fair value of the acquired intangible assets, (ii) interest expense associated with the Goldman Term Loan and (iii) the impact of certain fair value adjustments such as a decrease in depreciation expense related to the write-down in property, plant and equipment. The pro forma results do not include any potential synergies, non-recurring charges which result directly from the ITS Acquisition, cost savings or other expected benefits of the ITS Acquisition. The pro forma financial information does not necessarily represent what would have occurred if the transaction had taken place at the beginning of the period presented and should not be taken as representative of our future consolidated results of operations. We have not concluded our integration work. Accordingly, this pro forma information does not include all costs related to the integration nor the benefits we expect to realize from operating synergies.
		Year ended December 31,
		(unaudited)
		2013			2012
		(Dollars in thousands, except per share data)
	Revenue	$	914,992		$	794,640
	Net income	$	45,785		$	(14,117	)
	Net income attributable to Parker Drilling	$	45,391		$	(13,981	)
	Earnings per share - basic	$	0.38		$	(0.12	)
	Earnings per share - diluted	$	0.37		$	(0.12	)
	Basic number of shares	119,284,468			117,721,135
	Diluted number of shares	121,224,550			119,093,590

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Accumulated Other Comprehensive Income	'
	Accumulated Other Comprehensive Income
	Accumulated other comprehensive loss consisted of the following:
		Foreign Currency Items
		(in thousands)
	December 31, 2012	$	—
	Current period other comprehensive income	1,888
	December 31, 2013	$	1,888
	No amounts were reclassified out of accumulated other comprehensive income for the year ended December 31, 2013

Asset_Impairment

Asset Impairment	12 Months Ended
	Dec. 31, 2013
Asset Impairment Charges [Abstract]	'
Asset Impairment	'
	Asset Impairment
	Asset Impairment
	During the fourth quarter of 2011, we evaluated the present value of the future cash flows related to our arctic-class drilling rigs in accordance with the U.S. GAAP guidance for impairment or disposal of long-lived assets. The evaluation was performed as a result of the delay in completion of the rigs to modify the rigs to meet their design and functional requirements and an increase in the cost of the rigs. The need for the modifications was determined as a result of comprehensive safety, technical and operational reviews during commissioning activities of these prototype drilling rigs. The modification work extended the commissioning activities and increased the rigs’ total costs. At the time of the impairment evaluation, the two rigs’ cost at completion was estimated to be $385 million, which included capitalized interest estimates of approximately $50.7 million. This cost exceeded the estimated fair value of the rigs based on their projected cash flows. Based on this evaluation, the Company determined that the long-lived assets with a carrying amount of $339.5 million as of December 31, 2011, were no longer recoverable and were in fact impaired and recorded a charge in the 2011 fourth quarter of $170.0 million ($109.1 million, net of taxes) to reflect their estimated fair value of $169.5 million. Fair value was based on expected future cash flows using Level 3 inputs under the fair value measurement requirements. The cash flows are those expected to be generated by our assets, discounted at the 10 percent rate of interest. In December 2012 we commenced drilling operations with the first arctic-class drilling rig. The second rig completed client acceptance testing and began drilling in February 2013. The rigs are reported as part of the U.S. Drilling segment.
	Provision for Reduction in Carrying Value of an Asset
	During the 2013 fourth quarter, for two rigs previously reported as assets held for sale as of December 31, 2012, management concluded that facts and circumstances no longer support the expectation that a sale would be consummated within a reasonable time period. As a result, we reclassified these assets back to assets held and used in accordance with generally accepted accounting principles. Concurrently, we performed an impairment analysis of the two rigs and determined the fair value was less than the carrying amount before the assets were classified as held for sale, adjusted for any depreciation expense that would have been recognized had the assets been continuously classified as held and used. Therefore, during the 2013 fourth quarter we recorded a non-cash charge of $1.9 million to reflect the rigs current estimated fair value. Additionally, during the 2013 fourth quarter a sales agreement was terminated for three additional rigs which were previously expected to be sold prior to December 31, 2013. Upon termination of the sales agreement we performed a fair value analysis of the rigs and concluded for one rig, the carrying value of the rig exceeded fair value. Therefore, during the 2013 fourth quarter we recorded a non-cash charge of $0.6 million. Fair value was based on expected future cash flows using Level 3 inputs in accordance with fair value measurement requirements. The two rigs are reported as part of the International Drilling segment.
	In 2011, we recognized a charge of $1.4 million related to a final settlement of a bankruptcy proceeding.

Disposition_of_Assets

Disposition of Assets	12 Months Ended
	Dec. 31, 2013
Disposition Of Assets [Abstract]	'
Disposition of Assets	'
	Disposition of Assets
	During the 2013 fourth quarter, we sold two rigs located in New Zealand, including rig related inventory, property and leasehold improvements. The assets had a carrying value at the time of sale of $2.3 million and were sold for proceeds of $3.2 million resulting in a gain of approximately $0.9 million. The assets were part of our international drilling rig fleet. During the 2013 fourth quarter we also completed the sale of a building located in Tulsa, OK. As a result of the completed sale, we recognized proceeds of $0.8 million and $0.1 million gain on the sale. Additionally, during the 2013 third quarter we sold a barge rig located in Mexico with carrying value at the time of sale of $0.3 million for proceeds of $0.5 million, resulting in a $0.2 million gain. The barge rig was part of our Latin America rig fleet and has historically been included in the international drilling segment.
	In December 2012, we sold a 33 year old posted barge drilling rig for proceeds of $0.2 million, resulting in a $0.5 million loss. There were no individually significant asset dispositions in 2011.
	In addition, during the normal course of operations, we periodically sell equipment deemed to be excess, obsolete, or not currently required for operations.

Assets_Held_for_Sale

Assets Held for Sale	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Assets Held for Sale	'
	Assets Held for Sale
	We had no assets classified as assets held for sale as of December 31, 2013. During 2013, for five rigs previously reported as assets held for sale, management concluded that facts and circumstances no longer support the expectation that a sale would be consummated within a reasonable time period. During the 2013 second quarter, we reclassified three rigs from assets held for sale to assets held and used and inventory. We initially classified the three rigs as assets held for sale as of December 31, 2010. We performed an analysis of the fair value of the three rigs and determined the rigs' carrying amount was less than fair value; therefore, the rigs were reclassified at their carrying amount at the time the assets were classified as
	held for sale, adjusted for depreciation expense that would have been recognized had the assets been continuously classified as
	held and used. The amount of additional depreciation recorded during the 2013 second quarter to place the assets in held and used categorization was $0.7 million.
	Additionally, during the 2013 fourth quarter we reclassified two rigs from assets held for sale to assets held and used and inventory. We initially classified these rigs as held for sale as of September 30, 2012. We performed an analysis of the fair value of the two rigs and determined the fair value was less than the carrying amount before the assets were classified as held for sale, adjusted for any depreciation expense that would have been recognized had the assets been continuously classified as held and used. Therefore, during the 2013 fourth quarter we recorded a non-cash charge of $1.9 million to reflect the rigs current estimated fair value.
	We have adjusted the Assets held for sale, Inventory, and Property, plant and equipment balances for the year ended December 31, 2012 from what was reported in our December 31, 2012 Form 10-K, to reflect the reclassification of these assets.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	Income (loss) before income taxes is summarized below:
		Year Ended December 31,
		2013			2012				2011
		(Dollars in Thousands)
	United States	$	32,136		$	52,422			$	(61,434	)
	Foreign	20,651			18,555				(3,978		)
		$	52,787		$	70,977			$	(65,412	)
	Income tax expense (benefit) is summarized as follows:
		Year Ended December 31,
		2013			2012				2011
		(Dollars in Thousands)
	Current:
	United States:
	Federal	$	(3,658	)	$	7,791			$	17,168
	State	1,968			733				1,264
	Foreign	14,599			9,518				15,176
	Deferred:
	United States:
	Federal	10,720			15,612				(46,694		)
	State	2,820			4,296				1,864
	Foreign	(841		)	(4,071		)		(3,545		)
		$	25,608		$	33,879			$	(14,767	)
	Total income tax expense differs from the amount computed by multiplying income before income taxes by the U.S. federal income tax statutory rate. The reasons for this difference are as follows:
		Year Ended December 31,
		2013						2012						2011
		(Dollars in thousands)
		Amount			% of Pre-Tax			Amount				% of Pre-Tax		Amount			% of Pre-Tax
					Income							Income					Income
	Computed Expected Tax Expense	$	18,476		35	%		$	24,842			35	%	$	(22,894	)	35	%
	Foreign Taxes	12,470			24	%		13,171				19	%	11,752			(17	)%
	Tax Effect Different From Statutory Rates	(8,920		)	(17	)%		(8,080		)		(11	)%	(1,571		)	2	%
	State Taxes, net of federal benefit	4,099			8	%		4,757				7	%	2,689			(4	)%
	Foreign Tax Credits	(1,484		)	(3	)%		(1,867		)		(3	)%	(14,595		)	22	%
	Kazakhstan Tax Settlement	—			—	%		—				—	%	(536		)	1	%
	Change in Valuation Allowance	1,975			4	%		(1,662		)		(2	)%	2,542			(4	)%
	Uncertain Tax Positions	2,472			5	%		(6,642		)		(9	)%	3,647			(6	)%
	Permanent Differences	4,005			7	%		5,477				8	%	6,356			(10	)%
	Prior Year Return to Provision Adjustments	(6,268		)	(12	)%		4,057				5	%	4,156			(6	)%
	Other	(1,217		)	(2	)%		(174		)		(1	)%	(829		)	1	%
	Unremitted Foreign Earnings-Current Year Adjustment	—			—	%		—				—	%	(5,484		)	8	%
	Actual Tax Expense	$	25,608		49	%		$	33,879			48	%	$	(14,767	)	22	%
	The balances for the years ended December 31, 2012 and 2011 have been adjusted to reflect reclassifications of $1.3 million and $5.6 million, respectively, between foreign taxes and, primarily, prior year return to provision adjustments and amendments and other. Management concluded based on the facts and circumstances during 2013 the adjustments are closely related to items included in foreign taxes.
	The components of the Company’s deferred tax assets and liabilities as of December 31, 2013 and 2012 are shown below:
		December 31,
		2013			2012
		(Dollars in Thousands)
	Deferred tax assets
	Current deferred tax assets:
	Reserves established against realization of certain assets	$	1,504		$	1,634
	Accruals not currently deductible for tax purposes	7,223			6,747
	Other state deferred tax asset, net	990			361
	Foreign Local Office	223			—
	Gross current deferred tax assets	9,940			8,742
	Current deferred tax valuation allowance	—			—
	Net current deferred tax assets	9,940			8,742
	Non-current deferred tax assets:
	Federal net operating loss carryforwards	—			—
	State net operating loss carryforwards	864			3,095
	Other state deferred tax asset, net	1,909			914
	Foreign Tax Credits	27,462			25,977
	FIN 48	8,317			8,015
	Foreign tax	18,499			5,838
Asset Impairment	48,743			56,190
Accruals not currently deductible for tax purposes	1,017			—
Deferred compensation	2,436			—
Other	—			71
Gross long-term deferred tax assets	109,247			100,100
Valuation Allowance	(6,827		)	(4,805		)
Net non-current deferred tax assets, net of valuation allowance	102,420			95,295
Net deferred tax assets	112,360			104,037
Deferred tax liabilities:
Non-current deferred tax liabilities:
Property, Plant and equipment	(32,505		)	(19,139		)
Accruals	—			(1,066		)
Foreign tax local	(1,440		)	—
Deferred Compensation	—			2,001
Other state deferred tax liability, net	(4,819		)	(2,643		)
Other	(3		)	—
Gross non-current deferred tax liabilities	(38,767		)	(20,847		)
Net deferred tax asset	$	73,593		$	83,190
As part of the process of preparing the consolidated financial statements, the Company is required to determine its provision for income taxes. This process involves estimating the annual effective tax rate and the nature and measurements of temporary and permanent differences resulting from differing treatment of items for tax and accounting purposes. These differences and the operating loss and tax credit carryforwards result in deferred tax assets and liabilities. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that all or a portion of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income of appropriate character in each taxing jurisdiction during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carryforward periods), projected future taxable income, and tax planning strategies in making this assessment. To the extent the Company believes that it does not meet the test that recovery is more likely than not, it establishes a valuation allowance. To the extent that the Company establishes a valuation allowance or changes this allowance in a period, it adjusts the tax provision or tax benefit in the consolidated statement of operations. We use our judgment in determining provisions or benefits for income taxes, and any valuation allowance recorded against previously established deferred tax assets. Based upon the factors considered by management in assessing the realizability of the deferred tax assets, management believes it is more likely than not that the Company will realize the benefits of these deductible differences, net of the existing valuation allowances at December 31, 2013. The amount of the deferred tax asset considered realizable, however, could be reduced in the near term if estimates of future taxable income during the carryforward period are reduced.
On September 13, 2013, the U.S. Treasury Department and the Internal Revenue Service issued final regulations that address costs incurred in acquiring, producing, or improving tangible property (the “tangible property regulations”). The tangible property regulations are generally effective for tax years beginning on or after January 1, 2014. The tangible property regulations required the Company to make additional tax accounting method changes as of January 1, 2014; however, the impact of these changes has not been material to the Company’s consolidated financial position, its results of operations, or both.
The 2013 results include income tax benefits of $3.3 million related to the enacted Mexican tax reform as applied to the expected future utilization of deferred tax assets and liabilities and $20.9 million for depreciation and amortization relating to our arctic-class drilling rigs in Alaska. In addition, we increased our valuation allowance by $2.0 million primarily related to foreign net operating losses.
The 2012 results include income tax expenses of $1.7 million related to the effective settlement of our US Federal Internal Revenue Service examination for the 2006 through 2010 periods and $7.7 million for depreciation and amortization relating to our arctic-class drilling rigs in Alaska. In addition, we decreased our valuation allowance by $1.7 million primarily related to foreign NOLs.
The 2011 results include an income tax benefit of $60.9 million (federal and state combined) related to the $170.0 million non-cash pretax impairment charge relating to our arctic-class drilling rigs in Alaska. In addition, we increased our valuation allowance by $2.5 million primarily related to foreign NOLs.
A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
	In Thousands
Balance at January 1, 2013	$	(10,030	)
Additions based on tax positions taken during a prior period	(3,245		)
Reductions related to settlement of tax matters	1,066
Reductions related to a lapse of applicable statute of limitations	—
Balance at December 31, 2013	$	(12,209	)
In many cases, our uncertain tax positions are related to tax years that remain subject to examination by tax authorities. The following describes the open tax years, by major tax jurisdiction, as of December 31, 2013:
Colombia	2008-present
Kazakhstan	2007-present
Mexico	2008-present
Papua New Guinea	2010-present
Russia	2010-present
United States — Federal	2011-present
United Kingdom	2010-present
At December 31, 2013, we had a liability for unrecognized tax benefits of $12.2 million ($5.4 million of which, if recognized, would favorably impact our effective tax rate).
The Company recognized interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2013 and December 31, 2012 we had approximately $7.9 million and $7.0 million of accrued interest and penalties related to uncertain tax positions, respectively. We recognized an increase of $0.9 million of interest and no penalties on unrecognized tax benefits for the year ended December 31, 2013.
As of December 31, 2013, the Company has permanently reinvested accumulated undistributed earnings of foreign subsidiaries and, therefore, has not recorded a deferred tax liability related to subject earnings. Upon distribution of additional earnings in the form of dividends or otherwise, we would likely be subject to US income taxes and foreign withholding taxes. It is not practicable to determine precisely the amount of taxes that may be payable on the eventual remittance of these earnings because of the application of US foreign tax credits. While we currently claim foreign tax credits, we may not be in a credit position if and when future remittances of foreign earnings occur, or the limitation imposed by the Internal Revenue Code and regulations thereunder may not allow the credits to be utilized during the applicable carryback and carryforward periods.

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Long-Term Debt	'
	Long-Term Debt
	The following table illustrates the Company’s current debt portfolio as of December 31, 2013 and December 31, 2012:
		December 31,
		2013		2012
		(Dollars in Thousands)
	7.50% Senior Notes, due August 2020	$	225,000	$	—
	9.125% Senior Notes, due April 2018	428,781		429,205
	Term Note - Effective interest rate of 3.21 percent at December 31, 2012	—		50,000
	Total debt	653,781		479,205
	Less current portion	25,000		10,000
	Total long-term debt	$	628,781	$	469,205
	As of December 31, 2013, we have no debt maturities prior to 2018. However, we have classified $25.0 million of 9.125% Senior Notes (9.125% Notes) due April 2018, as current debt as management intends to repay this debt prior to maturity. The aggregate maturities of long-term debt, including unamortized premiums of $3.8 million, for 2018 and thereafter is $628.8 million. Subsequent to December 31, 2013, we issued $360.0 million aggregate principal amount of 6.75% Senior Notes due 2022 (6.75% Notes). Net proceeds from the 6.75% Notes offering plus a $40.0 million draw on the Secured Credit Agreement and cash on hand, were utilized to redeem $416.2 million aggregate principal amount of our outstanding 9.125% Notes. After payment for the tendered notes, $8.8 million aggregate principal amount of our 9.125% Notes remains outstanding. At December 31, 2013 management had the ability and intent to refinance the 9.125% Notes. With the issuance of the 6.75% Notes and the $40.0 million borrowing on the Secured Credit Agreement, we refinanced $400.0 million of our long-term debt, which remains classified as long-term debt as of December 31, 2013. The remaining $25.0 million of 9.125% Notes is classified as current debt as management intends to repay this portion of the debt prior to maturity. See Note 21 - Subsequent Events, for further discussion.
	7.50% Senior Notes, due August 2020
	On July 30, 2013, we issued $225.0 million aggregate principal amount of 7.50% Notes pursuant to an Indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. Net proceeds from the 7.50% Notes offering were primarily used to repay the $125.0 million aggregate principal amount of the Goldman Term Loan, to repay $45.0 million of Term Loan borrowings under our Secured Credit Agreement and for general corporate purposes.
	The 7.50% Notes are general unsecured obligations of the Company and rank equal in right of payment with all of our existing and future senior unsecured indebtedness. The 7.50% Notes are jointly and severally guaranteed by all of our subsidiaries that guarantee indebtedness under our Secured Credit Agreement Interest on the 7.50% Notes is payable on February 1 and August 1 of each year, beginning February 1, 2014. Debt issuance costs related to the 7.50% Notes were $5.3 million ($5.1 million, net of amortization as of December 31, 2013) and will be amortized over the term of the notes using the effective interest rate method.
	At any time prior to August 1, 2016, we may redeem up to 35 percent of the aggregate principal amount of the 7.50% Notes at a redemption price of 107.50 percent of the principal amount, plus accrued and unpaid interest to the redemption date, with the net cash proceeds of certain equity offerings by us. On and after August 1, 2016, we may redeem all or a part of the 7.50% Notes upon appropriate notice, at a redemption price of 103.750 percent of the principal amount, and at redemption prices decreasing each year thereafter to par beginning August 1, 2018. If we experience certain changes in control, we must offer to repurchase the 7.50% Notes at 101.0 percent of the aggregate principal amount, plus accrued and unpaid interest and additional interest, if any, to the date of repurchase.
	The Indenture restricts our ability and the ability of certain subsidiaries to: (i) sell assets, (ii) pay dividends or make other distributions on capital stock or redeem or repurchase capital stock or subordinated indebtedness, (iii) make investments, (iv) incur or guarantee additional indebtedness; (v) create or incur liens; (vi) enter into sale and leaseback transactions; (vii) incur dividend or other payment restrictions affecting subsidiaries, (viii) merge or consolidate with other entities, (ix) enter into transactions with affiliates, and (x) engage in certain business activities. Additionally, the Indenture contains certain restrictive covenants designating certain events as Events of Default. These covenants are subject to a number of important exceptions and qualifications.
	9.125% Senior Notes, due April 2018
	On March 22, 2010, we issued $300.0 million aggregate principal amount of 9.125% Notes pursuant to an Indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. Net proceeds from the 9.125% Notes offering were primarily used to redeem the $225.0 million aggregate principal amount of our 9.625% Senior Notes due 2013 and to repay $42.0 million of borrowings under our Secured Credit Agreement.
	On April 25, 2012, we issued an additional $125.0 million aggregate principal amount of 9.125% Notes under the same indenture at a price of 104.0 percent of par, resulting in gross proceeds of $130.0 million. Net proceeds from the offering were utilized to refinance $125.0 million aggregate principal amount of the 2.125% Convertible Notes due July 2012. We repurchased $122.9 million aggregate principal amount of the 2.125% Convertible Notes tendered pursuant to a tender offer on May 9, 2012 and paid off the remaining $2.1 million at their stated maturity on July 15, 2012.
	The 9.125% Notes are general unsecured obligations of the Company and rank equal in right of payment with all of our existing and future senior unsecured indebtedness. The 9.125% Notes are jointly and severally guaranteed by substantially all of our direct and indirect subsidiaries other than immaterial subsidiaries and subsidiaries generating revenues primarily outside the United States. Interest on the 9.125% Notes is payable on April 1 and October 1 of each year. Debt issuance costs related to the 9.125% Notes of approximately $11.6 million ($7.7 million, net of amortization) are being amortized over the term of the notes using the effective interest rate method.
	On January 7, 2014, we commenced a tender and consent solicitation with respect to the 9.125% Notes. The tender offer price was $1,061.98, inclusive of a $30.00 consent payment, for each $1,000 principal amount of 9.125% Notes, plus accrued and unpaid interest. On January 22, 2014, we paid $453.7 million for the tendered 9.125% Notes, comprised of $416.2 million of aggregate principal amount of the 9.125% Notes, $25.8 million of tender and consent premiums and $11.7 million of accrued interest. After payment for the tendered 9.125% Notes, $8.8 million aggregate principal amount of our 9.125% Notes remains outstanding.
	At any time after to April 1, 2014, we may redeem all or a part of the 9.125% Notes upon appropriate notice, at a redemption price of 104.563 percent of the principal amount, and at redemption prices decreasing each year thereafter to par beginning April 1, 2016. If we experience certain changes in control, we must offer to repurchase the 9.125% Notes at 101.0 percent of the aggregate principal amount, plus accrued and unpaid interest and additional interest, if any, to the date of repurchase.
	On January 24, 2014, the Indenture was amended to remove most of the restrictions on our ability and the ability of certain subsidiaries to: (i) sell assets, (ii) pay dividends or make other distributions on capital stock or redeem or repurchase capital stock or subordinated indebtedness, (iii) make investments, (iv) incur or guarantee additional indebtedness; (v) create or incur liens; (vi) enter into sale and leaseback transactions; (vii) incur dividend or other payment restrictions affecting subsidiaries, (viii) merge or consolidate with other entities, (ix) enter into transactions with affiliates, and (x) engage in certain business activities. The Indenture also was amended to remove certain restrictive covenants designating certain events as Events of Default. Additionally, the remaining restrictive covenants are subject to a number of important exceptions and qualifications.
	Goldman Term Loan
	In connection with the ITS Acquisition described in Note 2, Acquisition of ITS, on April 18, 2013, we entered into the $125 million Goldman Term Loan. The Goldman Term Loan was repaid on July 30, 2013 with net proceeds from issuance of the 7.50% Notes. In connection with the repayment of the Goldman Term Loan we incurred debt extinguishment costs of $5.2 million.
	2.125% Convertible Senior Notes, due July 2012
	On July 5, 2007, we issued $125.0 million aggregate principal amount of 2.125% Convertible Notes. As noted above, on May 9, 2012, we repurchased $122.9 million aggregate principal amount of the 2.125% Convertible Notes pursuant to a tender offer. The tender offer price was $1,003.27 for each $1,000 principal amount of 2.125% Convertible Notes, plus accrued and unpaid interest. This repurchase resulted in the recording of debt extinguishment costs of $1.8 million related to the accelerated amortization of both the unamortized debt issuance costs and debt discount associated with the 2.125% Convertible Notes. The remaining $2.1 million aggregate principal amount of non-tendered 2.125% Convertible Notes was subsequently paid off at their stated maturity on July 15, 2012.
	Amended and Restated Credit Agreement
	On December 14, 2012, we entered into an Amended and Restated Credit Agreement (Secured Credit Agreement) consisting of a senior secured $80.0 million Revolver and senior secured term loan facility (Term Loan) of $50.0 million. The Secured Credit Agreement amended and restated the Prior Credit Agreement. We entered into the Secured Credit Agreement to extend its maturity from May 14, 2013 to December 14, 2017 and to decrease the range of Applicable Rates under our Revolver. The Secured Credit Agreement provides that, subject to certain conditions, including the approval of the Administrative Agent and the lenders’ acceptance (or additional lenders being joined as new lenders), the amount of the Term Loan or Revolver can be increased by an additional $50.0 million, so long as after giving effect to such increase, the Aggregate Commitments shall not be in excess of $180.0 million.
	Our obligations under the Secured Credit Agreement are guaranteed by substantially all of our domestic subsidiaries, each of which has executed guaranty agreements; and are secured by first priority liens on our accounts receivable, specified barge rigs and rental equipment. The Secured Credit Agreement contains customary affirmative and negative covenants with which we were in compliance as of December 31, 2013 and December 31, 2012. The Secured Credit Agreement terminates on December 14, 2017.
	On July 19, 2013, we entered into an amendment to our Secured Credit Agreement which, among other things, permits us or any of our subsidiaries (other than certain immaterial subsidiaries) to incur indebtedness pursuant to additional unsecured senior notes in an aggregate principal amount not to exceed $250.0 million at any one time outstanding; provided that any such notes shall (x) have a scheduled maturity occurring after the maturity date of our Secured Credit Agreement, (y) contain terms (including covenants and events of default) no more restrictive, taken as a whole, to us and our subsidiaries than those contained in our Secured Credit Agreement and (z) have no scheduled amortization, no sinking fund requirements and no maintenance financial covenants. In addition, pursuant to the amendment, and subject to the terms and conditions set forth in the Secured Credit Agreement, to the extent we repay the principal amount of Term Loans outstanding under our Secured Credit Agreement, until April 30, 2014 we may re-borrow, in the form of additional term loans, up to $45.0 million of the principal amount of such outstanding term loans we have repaid, provided that such $45.0 million borrowing amount will decrease by $2.5 million at the end of each quarter beginning September 30, 2013 and ending March 31, 2014, such that the borrowing availability on December 31, 2013 was $40.0 million and on April 30, 2014 would be $37.5 million.
	Revolver
	Our Revolver is available for general corporate purposes and to support letters of credit. Interest on Revolver loans accrues at a Base Rate plus an Applicable Rate or LIBOR plus an Applicable Rate. Under the Secured Credit Agreement, the Applicable Rate varies from a rate per annum ranging from 2.50 percent to 3.00 percent for LIBOR rate loans and 1.50 percent to 2.00 percent for base rate loans, determined by reference to the consolidated leverage ratio (as defined in the Secured Credit Agreement). Under the Prior Credit Agreement, the Applicable Rate varied from a rate per annum ranging from 2.75 percent to 3.25 percent for LIBOR rate loans and 1.75 percent to 2.25 percent for base rate loans. Revolving loans are available subject to a borrowing base calculation based on a percentage of eligible accounts receivable, certain specified barge drilling rigs and rental equipment of the Company and its subsidiary guarantors. There were no revolving loans outstanding at December 31, 2013 and December 31, 2012. Letters of credit outstanding as of December 31, 2013 and December 31, 2012 totaled $4.6 million and $4.5 million, respectively.
	Term Loan
	The Term Loan originated at $50.0 million on December 14, 2012 and requires quarterly principal payments of $2.5 million beginning March 31, 2013. Interest on the Term Loan accrues at a Base Rate plus 2.00 percent or LIBOR plus 3.00 percent. The Prior Credit Agreement required quarterly principal payments of $6.0 million, and interest accrued at a Base Rate plus 2.25 percent or LIBOR plus 3.25 percent. The were no borrowings on the Term Loan at December 31, 2013. The outstanding balance under the Term Loan as of December 31, 2012 was $50.0 million.

Derivative_Financial_Instrumen

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	Derivative Financial Instruments
	During the 2011 second quarter, we entered into two variable-to-fixed interest rate swap agreements as a strategy to manage the floating rate risk on the Term Loan borrowings under the Secured Credit Agreement. The two agreements fixed the interest rate on a notional amount of $73.0 million of borrowings at 3.878 percent for the period beginning June 27, 2011 and terminating May 14, 2013. The notional amount of the swap agreements decreased correspondingly with amortization of the Term Loan under the Prior Credit Agreement. We did not apply hedge accounting to the agreements and, accordingly, change in the fair value of the interest rate swaps were recognized in earnings. As of December 31, 2013 the swap agreements had expired and as of December 31, 2012, the fair value of the interest rate swap was a liability of $0.1 million and was recorded in accrued liabilities in our consolidated balance sheets. For the year ended December 31, 2013, we recognized in earnings a nominal gain relating to these contracts. For both years ended December 31, 2012 and December 31, 2011 we recognized a nominal loss, relating to these contracts.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	Certain of our assets and liabilities are required to be measured at fair value on a recurring basis. For purposes of recording fair value adjustments for certain financial and non-financial assets and liabilities, and determining fair value disclosures, we estimate fair value at a price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal market for the asset or liability.
	The FASB fair value measurement and disclosure guidance requires inputs that we categorize using a three-level hierarchy, from highest to lowest level of observable inputs, as follows:
	Level 1 — Unadjusted quoted prices for identical assets or liabilities in active markets
	Level 2 — Direct or indirect observable inputs, including quoted prices or other market data, for similar assets or liabilities inactive markets or identical assets or liabilities in less active markets and
	Level 3 — Unobservable inputs that require significant judgment for which there is little or no market data.
	When multiple input levels are required for a valuation, we categorize the entire fair value measurement according to the lowest level of input that is significant to the measurement even though we may have also utilized significant inputs that are more readily observable. The amounts reported in our consolidated balance sheets for cash and cash equivalents, accounts receivable, and accounts payable approximate fair value. The carrying amount of our interest rate swap agreements represents the estimated fair value, measured using Level 2 inputs. As of December 31, 2013 the swap agreements had expired and as of December 31, 2012, the fair value of the interest rate swap was a liability of $0.1 million and was recorded in accrued liabilities in our consolidated balance sheets.
	Fair value of our debt instruments is determined using Level 2 inputs. Fair values and related carrying values of our debt instruments are as follows:
		December 31, 2013				December 31, 2012
		Carrying Amount		Fair Value		Carrying Amount		Fair Value
		(in thousands)
	Long-term Debt
	7.50% Notes	$	225,000	$	236,250	$	—	$	—
	9.125% Notes	425,000		446,250		425,000		453,688
	Total	$	650,000	$	682,500	$	425,000	$	453,688
	As discussed in Note 4, in accordance with the impairment or disposal of long-lived assets guidance, during the fourth quarter of 2011, our arctic-class rigs with a carrying value as of December 31, 2011 of $339.5 million were written down to their estimated fair value of $169.5 million, resulting in a pretax non-cash charge of $170.0 million which is included in earnings for the period. The fair value was based on expected future cash flows using Level 3 inputs.
	The assets acquired and liabilities assumed in the ITS Acquisition were recorded at fair value in accordance with U.S. GAAP. Acquisition date fair values represent either Level 2 fair value measurements (current assets and liabilities, property, plant and equipment) or Level 3 fair value measurements (intangible assets).
	Market conditions could cause an instrument to be reclassified from Level 1 to Level 2, or Level 2 to Level 3. There were no transfers between levels of the fair value hierarchy or any changes in the valuation techniques used during the year ended December 31, 2013.

Common_Stock_and_Stockholders_

Common Stock and Stockholders' Equity	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Common Stock and Stockholders' Equity	'
	Common Stock and Stockholders’ Equity
	Stock Plans — The Company’s employee and non-employee director stock plans are summarized as follows:
	The 2010 Long-Term Incentive Plan, as amended and restated (the Plan) was approved by the stockholders at the Annual Meeting of Stockholders on May 8, 2013. The Plan authorizes the compensation committee or the board of directors to issue stock options, stock appreciation rights, RSAs, RSUs, PAUs and other types of awards in cash or stock to key employees, consultants, and directors. The maximum number of shares that may be delivered pursuant to the awards granted under the Amended and Restated 2010 Long Term Incentive Plan is 11,000,000 shares of common stock. As of December 31, 2013 there were 5,130,182 shares remaining available under the Plan.
	For service-based awards and performance-based awards with graded vesting conditions, we recognize compensation expense on a straight-line basis over the service period for each separately vesting portion of the award as if the award was, in substance, multiple awards. For market-based awards that vest at the end of the service period, we recognize compensation expense on a straight-line basis through the end of the service period. Share-based awards generally vest over three years. Share-based compensation expense is recognized, net of an estimated forfeiture rate, which is based on historical experience and adjusted, if necessary, in subsequent periods based on actual forfeitures. The fair value of nonvested RSAs and RSUs is determined based on the closing trading price of the company’s shares on the grant date. Our RSAs and RSUs are settled in stock upon vesting. Our PAU awards can be settled in cash or stock, or a combination of cash and stock. We evaluate the terms of each PAU award to determine if the award should be accounted for as equity or a liability under the stock compensation rules of U.S. GAAP.
	We recognize share-based compensation expense in the same financial statement line item as cash compensation paid to the respective employees. Tax deduction benefits for awards in excess of recognized compensation costs are reported as a financing cash flow.
	On September 17, 2012, Gary Rich was elected as President, Chief Executive Officer and Director of the Company. As part of his employment agreement, he was granted 349,651 RSUs. Additionally, on May 9, 2013 Chris Weber was elected Senior Vice President and Chief Financial Officer of the Company. As part of his employment agreement, he was granted 261,438 RSUs. Both of these awards were granted outside of the Company’s 2010 Plan but are subject to substantially the same terms and conditions of other service-based RSUs granted by the Company to its executive officers.
	Information regarding the Company’s Long-Term Incentive plans is summarized below:
	Nonvested Shares	Shares		Weighted
				Average
				Grant-Date
				Fair
				Value
	Nonvested at January 1, 2013	2,812,482		$	5.15
	Granted	2,602,973		4.77
	Vested	(1,636,373	)	5
	Forfeited	(370,727	)	5.02
	Nonvested at December 31, 2013	3,408,355		$	4.97
	In 2013 and 2012, we issued 2,602,973 and 1,558,347, respectively, of restricted shares to selected key personnel. Total stock-based compensation expense recognized for the years ended December 31, 2013, 2012, and 2011 was $9.4 million, $7.2 million, and $5.9 million, respectively, all of which was related to nonvested stock. The total fair value of the shares vested during the years ended December 31, 2013, 2012, and 2011 was $7.4 million, $5.2 million, and $6.9 million, respectively. The fair value of RSAs and RSUs is determined based on the closing trading price of the company’s shares on the grant date. The weighted-average grant-date fair value of shares granted during the years 2013, 2012, and 2011 was $4.77, $5.37, and $5.61, respectively. Stock-based compensation expense is included in our consolidated statements of operations in both “General and administration expense” and “Operating expenses.”
	Nonvested RSUs at December 31, 2013 totaled 3,408,355 shares and total unrecognized compensation cost related to unamortized nonvested stock awards was $8.4 million as of December 31, 2013. The remaining unrecognized compensation cost related to non-vested stock awards will be amortized over a weighted-average vesting period of approximately 20.8 months.
	During the years ended December 31, 2013 and 2012, we granted to certain of our officers and key employees a total of 18,000 and 38,429 PAUs under the Plan, respectively. Subsequent to the award of these PAUs, 13,358 and 3,955 units were forfeited during 2013 and 2012, respectively. Incentive grants included in this issuance were based on the attainment of pre-established performance goals. Each PAU has a nominal value of $100.00. Awards are dependent upon our total stockholder return and return on capital employed relative to a peer group of companies over a three-year performance period. A maximum of 200 percent of the number of PAUs granted may be earned if performance at the maximum level is achieved. Compensation expense recognized related to the PAUs for the years ended December 31, 2013, 2012, and 2011 was $1.8 million, $0.5 million, and $2.1 million, respectively.

Reconciliation_of_Income_and_N

Reconciliation of Income and Number of Shares Used to Calculate Basic and Diluted Earnings per Share (EPS)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Reconciliation of Income and Number of Shares Used to Calculate Basic and Diluted Earnings per Share (EPS)	'
	Reconciliation of Income and Number of Shares Used to Calculate Basic and Diluted Earnings per Share (EPS)
			For the Year Ended December 31, 2013
			Income			Shares	Per-Share
			(Numerator)			(Denominator)	Amount
		Basic EPS	$	27,015,000		119,284,468	$	0.23
		Effect of dilutive securities:
		Stock options and restricted stock				1,940,082	$	(0.01	)
		Diluted EPS	$	27,015,000		121,224,550	$	0.22
			For the Year Ended December 31, 2012
			Income			Shares	Per-Share
			(Numerator)			(Denominator)	Amount
		Basic EPS	$	37,313,000		117,721,135	$	0.32
		Effect of dilutive securities:
		Stock options and restricted stock				1,372,455	$	(0.01	)
		Diluted EPS:	$	37,313,000		119,093,590	$	0.31
			For the Year Ended December 31, 2011
			Income			Shares	Per-Share
			(Numerator)			(Denominator)	Amount
		Basic EPS	$	(50,451,000	)	116,081,590	$	(0.43	)
		Effect of dilutive securities:
		Stock options and restricted stock				—	$	—
		Diluted EPS:	$	(50,451,000	)	116,081,590	$	(0.43	)
	For the years ended December 31, 2013 and 2012, weighted-average shares outstanding used in our computation of diluted EPS includes the dilutive effect of potential common shares. For the year ended December 31, 2011, all potential common shares have been excluded from the calculation of weighted-average shares outstanding used in our computation of diluted EPS as the company incurred a loss for that year, and therefore, inclusion of potential common shares in the calculation of diluted EPS would be anti-dilutive.

Employee_Benefit_Plan

Employee Benefit Plan	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Employee Benefit Plan	'
	Employee Benefit Plan
	The Company sponsors a defined contribution 401(k) plan (Plan) in which substantially all U.S. employees are eligible to participate. The Company matches 100 percent of each participant’s pre-tax contributions in an amount not exceeding 4 percent of the participant's compensation and 50 percent of each participant’s pre-tax contributions in an amount not exceeding 2 percent of the participant's compensation, up to the maximum amounts of contributions allowed by law. The costs of our matching contributions to the Plan were $3.6 million, $2.8 million and $2.4 million in 2013, 2012 and 2011, respectively. Employees become 100 percent vested in the employer match contributions immediately upon participation in the Plan. Coverage for office based employees begins on the date of hire. For rig-based and rental tools employees, coverage begins on the first of the month following completion of 30 calendar days of continuous full-time employment.

Reportable_Segments

Reportable Segments	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Reportable Segments	'
	Reportable Segments
	Our business is comprised of five segments: (1) Rental Tools, (2) U.S. Barge Drilling, (3) U.S. Drilling, (4) International Drilling, and (5) Technical Services. Historically, we reported a sixth segment, Construction Contract, for which there was no activity during the nine months ended September 30, 2013 or the year ended December 31, 2012. As a result of activity in the fourth quarter of 2013, this segment has been included in this report. We eliminate inter-segment revenue and expenses. The following table represents the results of operations by reportable segment:
		Year Ended December 31,
	Operations by Reportable Industry Segment:	2013			2012			2011
		(Dollars in Thousands)
	Revenues:
	Rental Tools(1)	$	310,041		$	246,900		$	237,068
	U.S. Barge Drilling(1)	136,855			123,672			93,763
	U.S. Drilling(1)	66,928			1,387			—
	International Drilling(1)	333,962			291,772			318,481
	Technical Services(1)	26,386			14,030			27,284
	Construction Contract(1)	—			—			9,638
	Total revenues	874,172			677,761			686,234
	Operating income:
	Rental Tools(2)	91,164			113,899			120,822
	U.S. Barge Drilling(2)	51,257			39,608			11,115
	U.S. Drilling(2)	(4,484		)	(15,168		)	(3,915		)
	International Drilling(2)	23,732			13,138			22,948
	Technical Services(2)	2,050			79			5,680
	Construction Contract(2)	4,728			—			771
	Total operating gross margin	168,447			151,556			157,421
	General and administrative expense	(68,025		)	(46,257		)	(31,567		)
	Impairments and other charges	—			—			(170,000		)
	Provision for reduction in carrying value of certain assets	(2,544		)	—			(1,350		)
	Gain on disposition of assets, net	3,994			1,974			3,659
	Total operating income (loss)	101,872			107,273			(41,837		)
	Interest expense	(47,820		)	(33,542		)	(22,594		)
	Interest income	2,450			153			256
	Loss on extinguishment of debt	(5,218		)	(2,130		)	—
	Changes in fair value of derivative positions	53			55			(110		)
	Other	1,450			(832		)	(1,127		)
	Income (loss) from continuing operations before income taxes	$	52,787		$	70,977		$	(65,412	)
		2013			2012
	Identifiable assets:
	Rental Tools	$	350,429		$	194,600
	U.S. Barge Drilling	89,884			99,409
	U.S. Drilling	354,208			369,683
	International Drilling	460,461			414,546
	Total identifiable assets	1,254,982			1,078,238
	Corporate and other assets(3)	279,774			177,495
	Total assets	$	1,534,756		$	1,255,733
	1)	In 2013, our largest customer, Exxon Neftegas Limited (ENL), constituted approximately 15.6 percent, respectively, of our total consolidated revenues and approximately 38.3 percent of our International Drilling segment and 33.9 percent of our Technical Services segment. In 2012, our two largest customers, ENL and Schlumberger, constituted approximately 12 percent and 10 percent, respectively, of our total consolidated revenues and approximately 27 percent and 24 percent of our International Drilling segment, respectively. In 2011, our largest customer, ENL constituted approximately 16 percent of our total revenues and approximately 34 percent of our International Drilling segment.
	2)	Operating income is calculated as revenues less direct operating expenses, including depreciation and amortization expense.
	3)	This category includes corporate assets as well as minimal assets for our Technical Services segment primarily related to office furniture and fixtures.
		Year Ended December 31,
	Operations by Reportable Industry Segment:	2013			2012			2011
		(Dollars in Thousands)
	Capital expenditures:
	Rental Tools	$	76,928		$	61,958		$	61,702
	U.S. Barge Drilling	23,694			8,808			7,339
	U.S. Drilling	1,809			86,786			99,915
	International Drilling	39,115			15,240			15,011
	Corporate	14,099			18,751			6,432
	Total capital expenditures	$	155,645		$	191,543		$	190,399
	Depreciation and amortization:
	Rental Tools	54,625			42,944			40,497
	U.S. Barge Drilling	13,796			13,906			17,006
	U.S. Drilling	16,120			7,011			2,223
	International Drilling	46,022			45,967			48,965
	Corporate and other (1)	3,490			3,189			3,445
	Total depreciation and amortization	$	134,053		$	113,017		$	112,136
	1)	This category includes depreciation of corporate assets as well as minimal depreciation for our Technical Services segment primarily related to office furniture and fixtures.
		Year Ended December 31,
Operations by Geographic Area:	2013			2012			2011
	(Dollars in Thousands)
Revenues:
Africa and Middle East	$	58,416		$	26,528		$	6,774
Asia Pacific	170,165			117,392			147,643
CIS	55,165			44,312			67,255
Europe	16,788			—			—
Latin America	120,261			103,540			96,810
United States	453,377			385,989			367,752
Total revenues	874,172			677,761			686,234
Operating gross margin:
Africa and Middle East(1)	(383		)	(2,027		)	(8,724		)
Asia Pacific(1)	21,995			16,550			23,528
CIS(1)	11,888			(9,580		)	8,709
Europe(1)	274			—			—
Latin America(1)	1,140			9,581			1,126
United States(1)	133,533			137,032			132,782
Total operating gross margin	168,447			151,556			157,421
General and administrative expense	(68,025		)	(46,257		)	(31,567		)
Impairments and other charges	—			—			(170,000		)
Provision for reduction in carrying value of certain assets	(2,544		)	—			(1,350		)
Gain on disposition of assets, net	3,994			1,974			3,659
Total operating income (loss)	101,872			107,273			(41,837		)
Interest expense	(47,820		)	(33,542		)	(22,594		)
Interest income	2,450			153			256
Loss on extinguishment of debt	(5,218		)	(2,130		)	—
Changes in fair value of derivative positions	53			55			(110		)
Other	1,450			(832		)	(1,127		)
Income (loss) from continuing operations before income taxes	$	52,787		$	70,977		$	(65,412	)
Long-lived assets:(2)
Africa and Middle East	$	110,336		$	25,032
Asia Pacific	44,606			18,688
CIS	55,722			110,848
Europe	82,473			—
Latin America	15,198			63,899
United States	563,021			574,730
Total long-lived assets	$	871,356		$	793,197
1)	Operating income is calculated as revenues less direct operating expenses, including depreciation and amortization expense.
2)	Long-lived assets primarily consist of property, plant and equipment, net and exclude assets held for sale, if any.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	The Company has various lease agreements for office space, equipment, vehicles and personal property. These obligations extend through 2025 and are typically non-cancelable. Most leases contain renewal options and certain of the leases contain escalation clauses. Future minimum lease payments at December 31, 2013, under operating leases with non-cancelable terms are as follows:
		Year Ended
		December 31,
		(Dollars in Thousands)
	2014	13,979
	2015	9,488
	2016	7,592
	2017	7,114
	2018	5,944
	Thereafter	7,988
	Total	$	52,105
	Total rent expense for all operating leases amounted to $19.9 million for 2013, $11.8 million for 2012 and $12.1 million for 2011.
	We are self-insured for certain losses relating to workers’ compensation, employers’ liability, general liability (for onshore liability), protection and indemnity (for offshore liability) and property damage. Our exposure (that is, the retention or deductible) per occurrence is $250,000 for worker’s compensation, employer’s liability, $500,000 general liability, protection and indemnity and maritime employers’ liability (Jones Act). In addition, we assume a $500,000 annual aggregate deductible for protection and indemnity and maritime employers’ liability claims. The annual aggregate deductible is reduced by every dollar that exceeds the $500,000 per occurrence retention. We also assume a retention for foreign casualty exposures of $100,000 for workers’ compensation, employers’ liability, and $1,000,000 for general liability losses and a $100,000 deductible for auto liability claims. For all primary insurances mentioned above, the Company has excess coverage for those claims that exceed the retention and annual aggregate deductible. We maintain actuarially-determined accruals in our consolidated balance sheets to cover the self-insurance retentions.
	We have self-insured retentions for certain other losses relating to rig, equipment, property, business interruption and political, war, and terrorism risks which vary according to the type of rig and line of coverage. Political risk insurance is procured for international operations. However, this coverage may not adequately protect us against liability from all potential consequences.
	As of December 31, 2013 and 2012, our gross self-insurance accruals for workers’ compensation, employers’ liability, general liability, protection and indemnity and maritime employers’ liability totaled $5.7 million and $4.7 million, respectively and the related insurance recoveries/receivables were $1.7 million and $1.2 million, respectively.
	We have entered into employment agreements with terms of one to two years with certain members of management with automatic one year renewal periods at expiration dates. The agreements provide for, among other things, compensation, benefits and severance payments. The employment agreements also provide for lump sum compensation and benefits in the event of termination within two years following a change in control of the Company.
	We are a party to various lawsuits and claims arising out of the ordinary course of business. We estimate the range of our liability related to pending litigation when we believe the amount or range of loss can be estimated. We record our best estimate of a loss when the loss is considered probable. When a liability is probable and there is a range of estimated loss with no best estimate in the range, we record the minimum estimated liability related to the lawsuits or claims. As additional information becomes available, we assess the potential liability related to our pending litigation and claims and revise our estimates. Due to uncertainties related to the resolution of lawsuits and claims, the ultimate outcome may differ significantly from our estimates. In the opinion of management and based on liability accruals provided, our ultimate exposure with respect to these pending lawsuits and claims is not expected to have a material adverse effect on our consolidated financial position or cash flows, although they could have a material adverse effect on our results of operations for a particular reporting period.
	Asbestos-Related Claims
	We are from time to time a party to various lawsuits that are incidental to our operations in which the claimants seek an unspecified amount of monetary damages for personal injury, including injuries purportedly resulting from exposure to asbestos on drilling rigs and associated facilities. At December 31, 2013, there were approximately 15 of these lawsuits in which we are one of many defendants. These lawsuits have been filed in the United States in the State of Mississippi.
	Our subsidiaries named in these asbestos-related lawsuits intend to defend themselves vigorously and, based on the information available to us at this time, we do not expect the outcome to have a material adverse effect on our financial condition, results of operations or cash flows. However, we are unable to predict the ultimate outcome of these lawsuits. No amounts were accrued at December 31, 2013.
	Customs Agent and Foreign Corrupt Practices Act (FCPA) Settlement
	On April 16, 2013, the Company and the Department of Justice (DOJ) entered into a deferred prosecution agreement (DPA), under which the DOJ will defer for three years prosecuting the Company for criminal violations of the anti-bribery provisions of the FCPA relating to the Company’s retention and use of an individual agent in Nigeria with respect to certain customs-related issues, in return for: (i) the Company’s acceptance of responsibility for, and agreement not to contest or contradict the truthfulness of, the statement of facts and allegations that have been filed in a United States District Court concurrently with the DPA; (ii) the Company’s payment of an approximately $11.76 million fine; (iii) the Company’s reaffirming its commitment to compliance with the FCPA and other applicable anti-corruption laws in connection with the Company’s operations, and continuing cooperation with domestic and foreign authorities in connection with the matters that are the subject of the DPA; (iv) the Company’s commitment to continue to address any identified areas for improvement in the Company’s internal controls, policies and procedures relating to compliance with the FCPA and other applicable anti-corruption laws if, and to the extent, not already addressed; and (v) the Company’s agreement to report to the DOJ in writing annually during the term of the DPA regarding remediation of the matters that are the subject of the DPA, implementation of any enhanced internal controls, and any evidence of improper payments the Company may have discovered during the term of the agreement. If the Company remains in compliance with the terms of the DPA throughout its effective period, the charge against the Company will be dismissed with prejudice. The Company also settled a related civil complaint filed by the SEC in a United States District Court.
	Demand Letter and Derivative Litigation
	In April 2010, we received a demand letter from a law firm representing Ernest Maresca. The letter states that Mr. Maresca is one of our stockholders and that he believes that certain of our current and former officers and directors violated their fiduciary duties related to the issues described above under “Customs Agent and Foreign Corrupt Practices Act (FCPA) Settlement.” The letter requests that our Board of Directors take action against the individuals in question. In response to this letter, the Board formed a special committee to evaluate the issues raised by the letter and determine a course of action for the Company. The special committee engaged its own counsel for the investigation and evaluated potential claims against all individuals identified in the demand letter. The special committee considered whether pursuing each of the individuals named in the demand letter was in the best interests of the Company based upon a variety of factors, including among others, whether the Company had a potential cause of action against the individual, the defenses the individual might offer to such a claim, the
	ability of the individual to satisfy any judgment the Company might secure as a result of a claim asserted, and other risks to the
	Company of pursuing the claims. After taking various factors into account, on July 29, 2013, the special committee recommended to the Board that the Company not pursue any action against the current and former officers and directors named
	in the demand letter, and the Board accepted such recommendation.
	ITS Internal Controls
	Our due diligence process with respect to the ITS Acquisition identified certain transactions that suggest that ITS' internal controls may have failed to prevent violations of potentially applicable international trade and anti-corruption laws, including those of the United Kingdom. We have investigated such violations and have and will, as appropriate, make any identified violations known to relevant authorities, cooperate with any resulting investigations and take proper remediation measures (including seeking any necessary government authorizations). While it is possible that matters may arise where a contingency may require further accounting considerations, we do not believe that as a result of these matters a loss is probable and estimable at this time.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	Consulting Agreement
	The Company was a party to a consulting agreement with Robert L. Parker Sr., the former Chairman of the Board of Directors of the Company and the father of our current Executive Chairman, Robert L. Parker Jr. The consulting agreement expired on April 30, 2011. Under the agreement, Mr. Parker Sr. was paid consulting fees of $40,000 during the year ended December 31, 2011. For one year after the termination of the consulting agreement, Mr. Parker Sr. was prohibited from soliciting business from any of our customers or individuals with which we have done business, from becoming interested in any business that competes with the Company, and from recruiting any employees of the Company. Under the consulting agreement, Mr. Parker Sr. also represented the Company on the U.S.-Kazakhstan Business Council. In addition, we pay a monthly rental fee to Mr. Parker Sr. for various pieces of artwork which are displayed throughout our corporate office. We paid Mr. Parker $36,000 for each of the years ended December 31, 2013, 2012, and 2011 for the artwork rental.
	Effective January 1, 2012, the Company entered into two separate ranch lease agreements under which the Company agreed to pay a daily usage fee per person for utilization of the Cypress Springs Ranch owned by the Robert L. Parker, Sr. and Catherine M. Parker Family Limited Partnership and the Camp Verde Ranch owned by Robert L. Parker, Jr. During 2013, the Company incurred fees of $14,281 in 2013 for the Cypress Springs Ranch. During 2012, the company incurred fees of $39,875 and $1,650 in 2012 for the Cypress Springs Ranch and Camp Verde Ranch, respectively, pursuant to the ranch lease agreements for the right to utilize the premises of the ranches for the purpose of hosting business meetings.
	Other Related Party Agreements
	During 2013 and 2012, one of the Company’s directors held executive positions at Apache Corporation (Apache), including the positions of President and Chief Corporate Officer, Executive Vice President and Chief Financial Officer and Chief Corporate Officer. During 2013 and 2012, affiliates of Apache paid affiliates of the Company a total of $40.8 million and $31.2 million, respectively, for performance of drilling services and provision of rental tools. Also during 2013, one of our directors served on the board of directors of Gardner Denver, Inc. (GD). During 2013, affiliates of the Company paid affiliates of GD $0.2 million for goods and services provided to the Company. This information is considered and discussed annually in connection with the Board of Directors’ assessment of facts and circumstances that could preclude a determination that such director is independent under the New York Stock Exchange governance listing standards.

Supplementary_Information

Supplementary Information	12 Months Ended
	Dec. 31, 2013
Additional Financial Information Disclosure [Abstract]	'
Supplementary Information	'
	Supplementary Information
	At December 31, 2013, accrued liabilities included $8.1 million of deferred mobilization fees, $16.8 million of accrued interest expense, $2.7 million of worker’s compensation liabilities and $33.5 million of accrued payroll and payroll taxes. Other long-term obligations included $3.0 million of workers’ compensation liabilities as of December 31, 2013.
	At December 31, 2012, accrued liabilities included $1.6 million of deferred mobilization fees, $9.7 million of accrued interest expense, $2.3 million of worker’s compensation liabilities and $26.0 million of accrued payroll and payroll taxes. Other long-term obligations included $2.5 million of workers’ compensation liabilities as of December 31, 2012.

Parent_Guarantor_NonGuarantor_

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements	'
	Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements
	Set forth on the following pages are the consolidating condensed financial statements of Parker Drilling. The Company’s Secured Credit Agreement and Senior Notes are fully and unconditionally guaranteed by substantially all of our direct and indirect domestic subsidiaries other than immaterial subsidiaries and subsidiaries generating revenues primarily outside the United States, subject to the following customary release provisions:
	•	in connection with any sale or other disposition of all or substantially all of the assets of that guarantor (including by way of merger or consolidation) to a person that is not (either before or after giving effect to such transaction) a subsidiary of the Company;
	•	in connection with any sale of such amount of capital stock as would result in such guarantor no longer being a subsidiary to a person that is not (either before or after giving effect to such transaction) a subsidiary of the Company;
	•	if the Company designates any restricted subsidiary that is a guarantor as an unrestricted subsidiary;
	•	if the guarantee by a guarantor of all other indebtedness of the Company or any other guarantor is released, terminated or discharged, except by, or as a result of, payment under such guarantee; or
	•	upon legal defeasance or covenant defeasance (satisfaction and discharge of the indenture).
	There are currently no restrictions on the ability of the restricted subsidiaries to transfer funds to Parker Drilling in the form of cash dividends, loans or advances. Parker Drilling is a holding company with no operations, other than through its subsidiaries. Separate financial statements for each guarantor company are not provided as the company complies with the exception to Rule 3-10(a)(1) of Regulation S-X, set forth in sub-paragraph (f) of such rule. All guarantor subsidiaries are owned 100 percent by the parent company.
	We are providing consolidating condensed financial information of the parent, Parker Drilling, the guarantor subsidiaries, and the non-guarantor subsidiaries as of December 31, 2013 and December 31, 2012 and for the years ended December 31, 2013, 2012, and 2011. The consolidating condensed financial statements present investments in both consolidated and unconsolidated subsidiaries using the equity method of accounting.
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
	(Dollars in Thousands)
	(Unaudited)
		Year ended December 31, 2013
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	Total revenues	$	—		$	468,073		$	549,295		$	(143,196	)	$	874,172
	Operating expenses	—			252,211			462,657			(143,196		)	571,672
	Depreciation and amortization	—			77,416			56,637			—			134,053
	Total operating gross margin	—			138,446			30,001			—			168,447
	General and administration expense (1)	(202		)	(67,083		)	(740		)	—			(68,025		)
	Provision for reduction in carrying value of certain assets	—			—			(2,544		)	—			(2,544		)
	Gain on disposition of assets, net	—			1,759			2,235			—			3,994
	Total operating income (loss)	(202		)	73,122			28,952			—			101,872
	Other income and (expense):
	Interest expense	(51,439		)	(335		)	(9,930		)	13,884			(47,820		)
	Changes in fair value of derivative positions	53			—			—			—			53
	Interest income	3,824			1,761			10,749			(13,884		)	2,450
	Loss on extinguishment of debt	(5,218		)	—			—			—			(5,218		)
	Other	(1		)	(143		)	1,594			—			1,450
	Equity in net earnings of subsidiaries	55,430			—			—			(55,430		)	—
	Total other income (expense)	2,649			1,283			2,413			(55,430		)	(49,085		)
	Income (loss) before income taxes	2,447			74,405			31,365			(55,430		)	52,787
	Income tax expense (benefit):
	Current	(21,431		)	18,737			15,603			—			12,909
	Deferred	(3,137		)	19,454			(3,618		)	—			12,699
	Income tax expense (benefit)	(24,568		)	38,191			11,985			—			25,608
	Net income (loss)	27,015			36,214			19,380			(55,430		)	27,179
	Less: Net (loss) attributable to noncontrolling interest	—			—			164			—			164
	Net income (loss) attributable to controlling interest	$	27,015		$	36,214		$	19,216		$	(55,430	)	$	27,015
	-1	General and administration expenses for field operations are included in operating expenses.
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
	(Dollars in Thousands)
	(Unaudited)
		Year ended December 31, 2012
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	Total revenues	$	—		$	393,738		$	385,279		$	(101,256	)	$	677,761
	Operating expenses	—			184,946			329,498			(101,256		)	413,188
	Depreciation and amortization	—			65,354			47,663			—			113,017
	Total operating gross margin	—			143,438			8,118			—			151,556
	General and administration expense (1)	(182		)	(45,758		)	(317		)	—			(46,257		)
	Gain on disposition of assets, net	—			775			1,199			—			1,974
	Total operating income (loss)	(182		)	98,455			9,000			—			107,273
	Other income and (expense):
	Interest expense	(37,326		)	(151		)	(8,739		)	12,674			(33,542		)
	Interest income	9,863			5,073			41,999			(56,782		)	153
	Loss on extinguishment of debt	(2,130		)	—			—			—			(2,130		)
	Changes in fair value of derivative positions	55			—			—			—			55
	Other	—			(206		)	(626		)	—			(832		)
	Equity in net earnings of subsidiaries	43,884			—			—			(43,884		)	—
	Total other income (expense)	14,346			4,716			32,634			(87,992		)	(36,296		)
	Income (loss) before income taxes	14,164			103,171			41,634			(87,992		)	70,977
	Income tax expense (benefit):
Current	(25,406		)	32,781			10,667			—			18,042
Deferred	2,257			15,429			(1,849		)	—			15,837
Income tax expense (benefit)	(23,149		)	48,210			8,818			—			33,879
Net income (loss)	37,313			54,961			32,816			(87,992		)	37,098
Less: Net (loss) attributable to noncontrolling interest	—			—			(215		)	—			(215		)
Net income (loss) attributable to controlling interest	37,313			54,961			33,031			(87,992		)	37,313
______________________
-1	General and administration expenses for field operations are included in operating expenses.
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
(Dollars in Thousands)
(Unaudited)
	Year ended December 31, 2011
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Total revenues	$	—		$	375,798		$	426,491		$	(116,055	)	$	686,234
Operating expenses	—			174,955			357,777			(116,055		)	416,677
Depreciation and amortization	—			62,744			49,392			—			112,136
Total operating gross margin	—			138,099			19,322			—			157,421
General and administration expense (1)	(218		)	(30,968		)	(381		)	—			(31,567		)
Impairment and other charges	—			(170,000		)	—			—			(170,000		)
Provision for reduction in carrying value of certain assets	—			(1,350		)	—			—			(1,350		)
Gain on disposition of assets, net	—			2,706			953			—			3,659
Total operating income (loss)	(218		)	(61,513		)	19,894			—			(41,837		)
Other income and (expense):
Interest expense	(26,654		)	(17,889		)	(8,865		)	30,814			(22,594		)
Interest income	18,131			750			12,189			(30,814		)	256
Loss on extinguishment of debt	—			—			—			—			—
Changes in fair value of derivative positions	(110		)	—			—			—			(110		)
Other	—			(315		)	(812		)	—			(1,127		)
Equity in net earnings of subsidiaries	(23,484		)	—			—			23,484			—
Total other income and (expense)	(32,117		)	(17,454		)	2,512			23,484			(23,575		)
Income (loss) before income taxes	(32,335		)	(78,967		)	22,406			23,484			(65,412		)
Income tax expense (benefit):
Current	(13,402		)	27,169			19,841			—			33,608
Deferred	31,518			(57,030		)	(22,863		)	—			(48,375		)
Total income tax expense (benefit)	18,116			(29,861		)	(3,022		)	—			(14,767		)
Net income (loss)	(50,451		)	(49,106		)	25,428			23,484			(50,645		)
Less: Net (loss) attributable to noncontrolling interest	$	—		$	—		$	(194	)	$	—		$	(194	)
Net income (loss) attributable to controlling interest	(50,451		)	(49,106		)	25,622			23,484			(50,451		)
_______________________
-1	General and administration expenses for field operations are included in operating expenses.
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATING CONDENSED BALANCE SHEET
(Dollars in Thousands)
(Unaudited)
	31-Dec-13
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	88,697		$	8,310		$	51,682		$	—		$	148,689
Accounts and notes receivable, net	—			101,299			156,590			—			257,889
Rig materials and supplies	—			3,002			38,779			—			41,781
Deferred costs	—			—			13,682			—			13,682
Deferred income taxes	(57		)	8,435			1,562			—			9,940
Other tax assets	54,524			(46,770		)	16,325			—			24,079
Other current assets	—			9,089			14,134			—			23,223
Total current assets	143,164			83,365			292,754			—			519,283
Property, plant and equipment, net	60			562,148			309,148			—			871,356
Investment in subsidiaries and intercompany advances	1,906,128			(336,570		)	1,667,937			(3,237,495		)	—
Other noncurrent assets	(457,954		)	468,864			250,983			(117,776		)	144,117
Total assets	$	1,591,398		$	777,807		$	2,520,822		$	(3,355,271	)	$	1,534,756
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Current portion of long-term debt	$	25,000		$	—		$	—		$	—		$	25,000
Accounts payable and accrued liabilities	75,268			92,546			261,436			(254,364		)	174,886
Accrued income taxes	—			725			6,541			—			7,266
Total current liabilities	100,268			93,271			267,977			(254,364		)	207,152
Long-term debt	628,781			—			—			—			628,781
Other long-term liabilities	5,037			6,743			15,134			—			26,914
Long-term deferred tax liability	—			51,747			(12,980		)	—			38,767
Intercompany payables	227,504			291,783			422,645			(941,932		)	—
Contingencies	—			—			—			—			—
Stockholders’ equity:
Common stock	20,075			18,049			43,003			(61,052		)	20,075
Capital in excess of par value	657,349			740,438			1,572,919			(2,313,357		)	657,349
Accumulated other comprehensive income	—			—			1,888			—			1,888
Retained earnings (accumulated deficit)	(47,616		)	(424,224		)	208,790			215,434			(47,616		)
Total controlling interest stockholders’ equity	629,808			334,263			1,826,600			(2,158,975		)	631,696
Noncontrolling interest	—			—			1,446			—			1,446
Total Equity	629,808			334,263			1,828,046			(2,158,975		)	633,142
Total liabilities and stockholders’ equity	$	1,591,398		$	777,807		$	2,520,822		$	(3,355,271	)	$	1,534,756
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATING CONDENSED BALANCE SHEET
(Dollars in Thousands)
(Unaudited)
	31-Dec-12
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
ASSETS
Current assets:
Cash and cash equivalents	$	42,251		$	11,023		$	34,612		$	—		$	87,886
Accounts and notes receivable, net	(7		)	77,927			90,695			—			168,615
Rig materials and supplies	—			2,835			26,587			—			29,422
Deferred costs	—			—			1,089			—			1,089
Deferred income taxes	—			7,615			1,127			—			8,742
Other tax assets	46,249			(31,136		)	18,411			—			33,524
Other current assets	—			8,708			4,145			—			12,853
Total current assets	88,493			76,972			176,666			—			342,131
Property, plant and equipment, net	60			548,794			244,343			—			793,197
Investment in subsidiaries and intercompany advances	1,492,708			(523,143		)	1,467,617			(2,437,182		)	—
Other noncurrent assets	(378,297		)	370,877			219,196			(91,371		)	120,405
Total assets	$	1,202,964		$	473,500		$	2,107,822		$	(2,528,553	)	$	1,255,733
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Current portion of long-term debt	$	10,000		$	—		$	—		$	—		$	10,000
Accounts payable and accrued liabilities	65,839			94,037			205,864			(227,994		)	137,746
Accrued income taxes	—			612			3,508			—			4,120
Total current liabilities	75,839			94,649			209,372			(227,994		)	151,866
Long-term debt	469,205			—			—			—			469,205
Other long-term liabilities	3,933			6,129			13,120			—			23,182
Long-term deferred tax liability	—			36,894			(16,047		)	—			20,847
Intercompany payables	62,583			43,657			216,369			(322,609		)	—
Contingencies	—			—			—			—			—
Stockholders’ equity:
Common stock	19,818			18,049			43,003			(61,052		)	19,818
Capital in excess of par value	646,217			733,112			1,455,246			(2,188,358		)	646,217
Retained earnings (accumulated deficit)	(74,631		)	(458,990		)	187,530			271,460			(74,631		)
Total controlling interest stockholders’ equity	591,404			292,171			1,685,779			(1,977,950		)	591,404
Noncontrolling interest	—			—			(771		)	—			(771		)
Total Equity	591,404			292,171			1,685,008			(1,977,950		)	590,633
Total liabilities and stockholders’ equity	$	1,202,964		$	473,500		$	2,107,822		$	(2,528,553	)	$	1,255,733
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATING CONDENSED STATEMENT OF COMPREHENSIVE INCOME (LOSS)
(Dollars in Thousands)
(Unaudited)
	Year Ended December 31, 2013
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Comprehensive income:
Net income	$	27,015		$	36,214		$	19,380		$	(55,430	)	$	27,179
Other comprehensive gain, net of tax:
Currency translation difference on related borrowings	—			—			(1,525		)	—			(1,525		)
Currency translation difference on foreign currency net investments	—			—			3,051			—			3,051
Total other comprehensive gain, net of tax:	—			—			1,526			—			1,526
Comprehensive income	27,015			36,214			20,906			(55,430		)	28,705
Comprehensive (income) loss attributable to noncontrolling interest	—			—			198			—			198
Comprehensive income (loss) attributable to controlling interest	$	27,015		$	36,214		$	21,104		$	(55,430	)	$	28,903
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATING CONDENSED STATEMENT OF COMPREHENSIVE INCOME (LOSS)
(Dollars in Thousands)
(Unaudited)
	Year Ended December 31, 2012
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Comprehensive income:
Net income	$	37,313		$	54,961		$	32,816		$	(87,992	)	$	37,098
Other comprehensive gain, net of tax:
Currency translation difference on related borrowings	—			—			—			—			—
Currency translation difference on foreign currency net investments	—			—			—			—			—
Total other comprehensive gain, net of tax:	—			—			—			—			—
Comprehensive income	37,313			54,961			32,816			(87,992		)	37,098
Comprehensive (income) loss attributable to noncontrolling interest	—			—			215			—			215
Comprehensive income (loss) attributable to controlling interest	$	37,313		$	54,961		$	33,031		$	(87,992	)	$	37,313
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATING CONDENSED STATEMENT OF COMPREHENSIVE INCOME (LOSS)
(Dollars in Thousands)
(Unaudited)
	Year ended December 31, 2011
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Comprehensive income:
Net income	$	(50,451	)	$	(49,106	)	$	25,428		$	23,484		$	(50,645	)
Other comprehensive gain, net of tax:
Currency translation difference on related borrowings	—			—			—			—			—
Currency translation difference on foreign currency net investments	—			—			—			—			—
Total other comprehensive gain, net of tax:	—			—			—			—			—
Comprehensive income	(50,451		)	(49,106		)	25,428			23,484			(50,645		)
Comprehensive (income) loss attributable to noncontrolling interest	—			—			194			—			194
Comprehensive income (loss) attributable to controlling interest	$	(50,451	)	$	(49,106	)	$	25,622		$	23,484		$	(50,451	)
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)
(Unaudited)
	Year Ended December 31, 2013
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Cash flows from operating activities:
Net income (loss)	$	27,015		$	36,214		$	19,380		$	(55,430	)	$	27,179
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	—			77,416			56,637			—			134,053
Loss on extinguishment of debt	5,218			—			—			—			5,218
Gain on disposition of assets	—			(1,759		)	(2,235		)	—			(3,994		)
Deferred income tax expense	(3,137		)	19,454			(3,618		)	—			12,699
Provision for reduction in carrying value of certain assets	—			—			2,544			—			2,544
Expenses not requiring cash	13,173			12			4,579			—			17,764
Equity in net earnings of subsidiaries	(55,430		)	—			—			55,430			—
Change in accounts receivable	(7		)	(12,888		)	(20,617		)	—			(33,512		)
Change in other assets	74,411			(85,520		)	487			—			(10,622		)
Change in accrued income taxes	6,617			(1,052		)	4,889			—			10,454
Change in liabilities	6,934			(877		)	(6,343		)	—			(286		)
Net cash provided by (used in) operating activities	74,794			31,000			55,703			—			161,497
Cash flows from investing activities:
Capital expenditures	—			(94,269		)	(61,376		)	—			(155,645		)
Proceeds from the sale of assets	—			3,725			4,493			—			8,218
Acquisition of ITS, net of cash acquired	—			(6,903		)	(111,088		)	—			(117,991		)
Intercompany dividend payment	—			—			—			—			—
Net cash (used in) investing activities	—			(97,447		)	(167,971		)	—			(265,418		)
Cash flows from financing activities:
Proceeds from debt issuance	350,000			—			—			—			350,000
Proceeds from draw on revolver credit facility	—			—			—			—			—
Repayment of long term debt	(125,000		)	—			—			—			(125,000		)
Repayment of term loan	(50,000		)	—			—			—			(50,000		)
Paydown on revolver credit facility	—			—			—			—			—
Payment of debt issuance costs	(11,172		)	—			—			—			(11,172		)
Payment of debt extinguishment costs	—			—			—			—			—
Excess tax benefit from stock-based compensation	896			—			—			—			896
Intercompany advances, net	(193,072		)	63,734			129,338			—			—
Net cash provided by (used in) financing activities	(28,348		)	63,734			129,338			—			164,724
Net change in cash and cash equivalents	46,446			(2,713		)	17,070			—			60,803
Cash and cash equivalents at beginning of year	42,251			11,023			34,612			—			87,886
Cash and cash equivalents at end of year	$	88,697		$	8,310		$	51,682		$	—		$	148,689
See accompanying notes to unaudited consolidated condensed financial statements.
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)
(Unaudited)
	Year Ended December 31, 2012
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Cash flows from operating activities:
Net income (loss)	$	37,313		$	54,961		$	32,816		$	(87,992	)	$	37,098
Adjustments to reconcile net income (loss)to net cash provided by operating activities:
Depreciation and amortization	—			65,354			47,663			—			113,017
Loss on extinguishment of debt	2,130			—			—			—			2,130
Gain on disposition of assets	—			(775		)	(1,199		)	—			(1,974		)
Deferred income tax expense	2,257			15,429			(1,849		)	—			15,837
Expenses not requiring cash	16,558			33,644			(27,602		)	—			22,600
Equity in net earnings of subsidiaries	(43,884		)	—			—			43,884			—
Change in accounts receivable	(445		)	(1,788		)	17,474			—			15,241
Change in other assets	1,649			2,060			(9,200		)	—			(5,491		)
Change in accrued income taxes	(4,055		)	220			(2,267		)	—			(6,102		)
Change in liabilities	3,914			(4,158		)	(2,413		)	—			(2,657		)
Net cash provided by (used in) operating activities	15,437			164,947			53,423			(44,108		)	189,699
Cash flows from investing activities:
Capital expenditures	—			(176,333		)	(15,210		)	—			(191,543		)
Proceeds from the sale of assets	—			2,062			1,875			—			3,937
Intercompany dividend payment	(8,387		)	(4,357		)	(31,364		)	44,108			—
Net cash provided by (used in) investing activities	(8,387		)	(178,628		)	(44,699		)	44,108			(187,606		)
Cash flows from financing activities:
Proceeds from debt issuance	130,000			—			—			—			130,000
Proceeds from draw on revolver credit facility	7,000			—			—			—			7,000
Paydown on senior notes	(125,000		)	—			—			—			(125,000		)
Paydown on term note	(18,000		)	—			—			—			(18,000		)
Paydown on revolver credit facility	—			—			—			—			—
Payment of debt issuance costs	(4,859		)	—			—			—			(4,859		)
Payment of debt extinguishment costs	(555		)	—			—			—			(555		)
Excess tax benefit from stock-based compensation	(662		)	—			—			—			(662		)
Intercompany advances, net	(8,393		)	20,492			(12,099		)	—			—
Net cash provided by (used in) financing activities	(20,469		)	20,492			(12,099		)	—			(12,076		)
Net change in cash and cash equivalents	(13,419		)	6,811			(3,375		)	—			(9,983		)
Cash and cash equivalents at beginning of year	55,670			4,212			37,987			—			97,869
Cash and cash equivalents at end of year	$	42,251		$	11,023		$	34,612		$	—		$	87,886
See accompanying notes to unaudited consolidated condensed financial statements.
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)
(Unaudited)
	Year Ended December 31, 2011
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Cash flows from operating activities:
Net income (loss)	$	(50,451	)	$	(49,106	)	$	25,428		$	23,484		$	(50,645	)
Adjustments to reconcile net income (loss)to net cash provided by operating activities:
Depreciation and amortization	—			62,744			49,392			—			112,136
Loss on extinguishment of debt	—			—			—			—			—
Gain on disposition of assets	—			(2,706		)	(953		)	—			(3,659		)
Deferred income tax expense	31,518			(57,030		)	(22,863		)	—			(48,375		)
Impairment and other charges	—			170,000			—			—			170,000
Provision for reduction in carrying value of certain assets	—			1,350			—			—			1,350
Expenses not requiring cash	16,411			376			(3,954		)	—			12,833
Equity in net earnings of subsidiaries	23,484			—			—			(23,484		)	—
Change in accounts receivable	(288,333		)	347,344			(65,852		)	—			(6,841		)
Change in other assets	62,173			(16,724		)	16,404			—			61,853
Change in accrued income taxes	(12,852		)	(2,053		)	17,046			—			2,141
Change in liabilities	2,398			(51,351		)	24,045			—			(24,908		)
Net cash provided by (used in) operating activities	(215,652		)	402,844			38,693			—			225,885
Cash flows from investing activities:
Capital expenditures	—			(174,999		)	(15,400		)	—			(190,399		)
Proceeds from the sale of assets	—			4,335			1,200			—			5,535
Proceeds from insurance settlements	—			250			—			—			250
Intercompany dividend payment	—			—			—			—			—
Net cash provided by (used in) investing activities	—			(170,414		)	(14,200		)	—			(184,614		)
Cash flows from financing activities:
Proceeds from debt issuance	50,000			—			—			—			50,000
Paydown on term note	(21,000		)	—			—			—			(21,000		)
Paydown on revolver credit facility	(25,000		)	—			—			—			(25,000		)
Payment of debt issuance costs	(504		)	—			—			—			(504		)
Payment of debt extinguishment costs	—			—			—			—			—
Proceeds from stock options exercised	183			—			—			—			183
Excess tax benefit from stock-based compensation	1,488			—			—			—			1,488
Intercompany advances, net	252,320			(230,535		)	(21,785		)	—			—
Net cash provided by (used in) financing activities	257,487			(230,535		)	(21,785		)	—			5,167
Net change in cash and cash equivalents	41,835			1,895			2,708			—			46,438
Cash and cash equivalents at beginning of year	13,835			2,317			35,279			—			51,431
Cash and cash equivalents at end of year	$	55,670		$	4,212		$	37,987		$	—		$	97,869
See accompanying notes to unaudited consolidated condensed financial statements.

Selected_Quarterly_Financial_D

Selected Quarterly Financial Data	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Selected Quarterly Financial Data	'
	Selected Quarterly Financial Data
		Quarter
	Year 2013	First		Second		Third		Fourth			Total
		(Dollars in Thousands Except Per Share Amounts)
		(Unaudited)
	Revenues	$	167,135	$	225,954	$	237,762	$	243,321		$	874,172
	Operating gross margin(2)	$	20,877	$	50,273	$	48,733	$	48,564		$	168,447
	Operating income	$	9,180	$	28,587	$	35,589	$	28,516		$	101,872
	Net income attributable to controlling interest	$	592	$	8,281	$	7,970	$	10,172		$	27,015
	Basic earnings per share — net income(1)	$	0	$	0.07	$	0.07	$	0.08		$	0.23
	Diluted earnings per share — net income(1)	$	0	$	0.07	$	0.07	$	0.08		$	0.22
		Quarter
	Year 2012	First		Second		Third		Fourth			Total
		(Dollars in Thousands Except Per Share Amounts)
		(Unaudited)
	Revenues	$	176,495	$	178,895	$	165,200	$	157,171		$	677,761
	Operating gross margin(2)	$	53,744	$	46,914	$	34,261	$	16,637		$	151,556
	Operating income	$	48,689	$	40,978	$	25,903	$	(8,297	)	$	107,273
	Net income (loss) attributable to controlling interest	$	26,392	$	20,083	$	10,936	$	(20,098	)	$	37,313
	Basic earnings per share — net income (loss)(1)	$	0.23	$	0.17	$	0.09	$	(0.17	)	$	0.32
	Diluted earnings per share — net income (loss)(1)	$	0.22	$	0.17	$	0.09	$	(0.17	)	$	0.31
	1)	As a result of shares issued during the year, earnings per share for each of the year’s four quarters, which are based on weighted average shares outstanding during each quarter, may not equal the annual earnings per share, which is based on the weighted average shares outstanding during the year. Additionally, as a result of rounding to the thousands, revenues, operating gross margin, operating income, and net income (loss) attributable to controlling interest may not equal the 2013 year to date results.
	2)	As the Company modified its reporting segments to be consistent with recent organizational changes to improve our drilling organization, expenses related to our U.S. Barge Drilling segment were found to be incorrectly included in our general and administrative expense during the first through third quarters of the current year. These expenses have been appropriately reclassified to be included as part of the segment operating expenses, therefore our operating gross margin for each of the first three quarters will not agree to the respective 10-Q reports for the current year only.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2013
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	Fair value measurements — Effective January 1, 2012, we adopted the accounting standards update that changes the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements. Some of the amendments included in this update are intended to clarify the applications of existing fair value measurement requirements. The update is effective for annual periods beginning after December 15, 2011. This adoption did not have a material effect on the disclosures contained in our notes to the consolidated financial statements.
	Comprehensive Income — On January 1, 2012, we adopted an update issued by the FASB to existing guidance on the presentation of comprehensive income. The update eliminates the option to present the components of other comprehensive income (OCI) as part of the statement of changes in stockholders’ equity. Public entities are required to comply with the new reporting requirements for fiscal years beginning after December 15, 2011 and interim periods within those years. Calendar year-end companies must adopt the requirements for the quarter ended March 31, 2012. The adoption of this update did not have a material impact on our financial position, results of operations, cash flows, or disclosures.
	Impairment — In July 2012, the FASB issued an update to existing guidance on the impairment assessment of indefinite-lived intangibles. This update simplifies the impairment assessment of indefinite-lived intangibles by allowing companies to consider qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying amount before performing the two step impairment review process. The adoption of this update did not have an impact on our condensed consolidated financial statements.

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	Subsequent Events
	6.75% Senior Notes, due July 2022
	On January 22, 2014, we issued $360.0 million aggregate principal amount of 6.75% Notes pursuant to an Indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee. Net proceeds from the 6.75% Notes offering plus a $40.0 million Term Loan on the Secured Credit Agreement and cash on hand, were utilized to redeem $416.2 million aggregate principal amount of our outstanding 9.125% Notes due 2018 pursuant to a tender and consent solicitation offer commenced on January 7, 2014. The tender offer price was $1,061.98, inclusive of a $30.00 consent payment, for each $1,000.00 principal amount of 9.125% Notes, plus accrued and unpaid interest. On January 22, 2014, we paid $453.7 million for the tendered bonds, comprised of $416.2 million of aggregate principal amount of the bonds, $25.8 million of tender and consent premiums and $11.7 million of accrued interest. After payment for the tendered notes, $8.8 million aggregate principal amount of our 9.125% Notes remains outstanding.
	The 6.75% Notes are general unsecured obligations of the Company and rank equal in right of payment with all of our existing and future senior unsecured indebtedness. The 6.75% Notes are jointly and severally guaranteed by all of our subsidiaries that guarantee indebtedness under our Secured Credit Agreement. Interest on the 6.75% Notes is payable on January 15 and July 15 of each year, beginning July 15, 2014. Debt issuance costs related to the 6.75% Notes are estimated to be $7.1 million and will be amortized over the term of the notes using the effective interest rate method. The Term Loan amortizes quarterly with required payments of $2.5 million. For further discussion of the Term Loan see Note 8 - Long-Term Debt.
	At any time prior to January 15, 2017, we may redeem up to 35 percent of the aggregate principal amount of the 6.75% Notes at a redemption price of 106.75 percent of the principal amount, plus accrued and unpaid interest to the redemption date, with the net cash proceeds of certain equity offerings by us. On and after January 15, 2018, we may redeem all or a part of the 6.75% Notes upon appropriate notice, at a redemption price of 103.375 percent of the principal amount, and at redemption prices decreasing each year thereafter to par beginning January 15, 2020. If we experience certain changes in control, we must offer to repurchase the 6.75% Notes at 101.0 percent of the aggregate principal amount, plus accrued and unpaid interest and additional interest, if any, to the date of repurchase.
	The Indenture restricts our ability and the ability of certain subsidiaries to: (i) sell assets, (ii) pay dividends or make other distributions on capital stock or redeem or repurchase capital stock or subordinated indebtedness, (iii) make investments, (iv) incur or guarantee additional indebtedness; (v) create or incur liens; (vi) enter into sale and leaseback transactions; (vii) incur dividend or other payment restrictions affecting subsidiaries, (viii) merge or consolidate with other entities, (ix) enter into transactions with affiliates, and (x) engage in certain business activities. Additionally, the Indenture contains certain restrictive covenants designating certain events as Events of Default. These covenants are subject to a number of important exceptions and qualifications.
	9.125% Senior Notes, due April 2018
	On January 7, 2014, we commenced a tender and consent solicitation with respect to the 9.125% Notes issued pursuant to an Indenture between the Company and The Bank of New York Mellon Trust Company, N.A., as trustee.. The tender offer price was $1,061.98, inclusive of a $30.00 consent payment, for each $1,000 principal amount of 9.125% Notes, plus accrued and unpaid interest. On January 22, 2014, we paid $453.7 million for the tendered 9.125% Notes, comprised of $416.2 million of aggregate principal amount of the 9.125% Notes, $25.8 million of tender and consent premiums and $11.7 million of accrued interest. After payment for the tendered 9.125% Notes, $8.8 million aggregate principal amount of our 9.125% Notes remains outstanding.
	At any time prior to April 1, 2014, we may redeem all or a part of the 9.125% Notes upon appropriate notice, at a redemption price of 104.563 percent of the principal amount, and at redemption prices decreasing each year thereafter to par beginning April 1, 2016. If we experience certain changes in control, we must offer to repurchase the 9.125% Notes at 101.0 percent of the aggregate principal amount, plus accrued and unpaid interest and additional interest, if any, to the date of repurchase.
	On January 24, 2014, the Indenture was amended to remove most of the restrictions on our ability and the ability of certain subsidiaries to: (i) sell assets, (ii) pay dividends or make other distributions on capital stock or redeem or repurchase capital stock or subordinated indebtedness, (iii) make investments, (iv) incur or guarantee additional indebtedness; (v) create or incur liens; (vi) enter into sale and leaseback transactions; (vii) incur dividend or other payment restrictions affecting subsidiaries, (viii) merge or consolidate with other entities, (ix) enter into transactions with affiliates, and (x) engage in certain business activities. The Indenture also was amended to remove certain restrictive covenants designating certain events as Events of Default. Additionally, the remaining restrictive covenants are subject to a number of important exceptions and qualifications.

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract]	'
Schedule II - Valuation and Qualifying Accounts	'
	SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS
	(Dollars in Thousands)
	Classifications	Balance at		Charged			Charged			Deductions			Balance
		beginning		to cost			to other						at end
		of year		and			accounts						of
				expenses									year
	Year ended December 31, 2013
	Allowance for doubtful accounts and notes	$	8,117	$	5,092		$	5,861		$	(6,217	)	$	12,853
	Allowance for obsolete rig materials and supplies	$	312	—			$	3,586		$	(453	)	$	3,445
	Deferred tax valuation allowance	$	4,805	$	2,010		$	12		$	—		$	6,827
	Year ended December 31, 2012
	Allowance for doubtful accounts and notes	$	1,544	$	4,264		$	3,195		$	(886	)	$	8,117
	Allowance for obsolete rig materials and supplies	$	316	—			$	—		$	(4	)	$	312
	Deferred tax valuation allowance	$	6,467	$	(1,662	)	$	—		$	—		$	4,805
	Year ended December 31, 2011
	Allowance for doubtful accounts and notes	$	7,020	$	2,258		$	(2,034	)	$	(5,700	)	$	1,544
	Allowance for obsolete rig materials and supplies	$	309	$	26		$	—		$	(19	)	$	316
	Deferred tax valuation allowance	$	5,532	$	2,542		$	(1,607	)	$	—		$	6,467

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Nature of Operations	'
	Nature of Operations — Parker Drilling, together with its subsidiaries, is an international provider of contract drilling and drilling-related services and rental tools. We have operated in over 50 countries since beginning operations in 1934, making us among the most geographically experienced drilling contractors and rental tools providers in the world. We currently have operations in 24 countries, 10 of which we entered through our acquisition in 2013 of International Tubular Services Limited and certain of its affiliates (collectively, ITS) and other related assets (the ITS Acquisition). We own and operate drilling rigs and drilling-related equipment and also perform drilling-related services, referred to as Operations & Maintenance (O&M) work, for customer-owned drilling rigs on a contracted basis. We have extensive experience and expertise in drilling geologically difficult wells and in managing the logistical and technological challenges of operating in remote, harsh and ecologically sensitive areas. Our rental tools business supplies premium equipment to operators on land and offshore in the U.S. and select international markets. We have significant knowledge of the equipment needs of drilling operators and the logistical and product quality requirements of an effective rental tools supplier. We believe we are among the industry leaders in quality, health, safety and environmental practices.
	Our business is currently comprised of five operating segments: Rental Tools, U.S. Barge Drilling, U.S. Drilling, International Drilling, and Technical Services. Our rental tools business provides premium rental tools for land and offshore oil and natural gas drilling and workover and production applications. Tools we provide include drill pipe, heavy-weight drill pipe, tubing, high-torque connections, BOPs, drill collars, casing running systems, tools for fishing services and more. Our U.S. barge drilling business operates barge rigs that drill for oil and natural gas in the shallow waters in and along the inland waterways and coasts of Louisiana, Alabama, and Texas. Our U.S. drilling business primarily consists of two new-design arctic-class drilling rigs in Alaska intended to address the challenges presented by the remote location, harsh climate and sensitive environment that characterize the Alaskan North Slope in addition to O&M work in support of ExxonMobil’s Santa Ynez Unit offshore platform operations located in the Channel Islands region of California. Our international drilling business includes operations related to Parker-owned and customer-owned rigs. Operations related to customer rigs includes operations and maintenance and other project management services, such as labor, maintenance, and logistics for operators who own their own drilling rigs, but choose Parker Drilling to operate the rigs for them. Our Technical services business includes engineering and related project services during Front End Engineering Design (FEED), pre-FEED and concept development phases of customer-owned drilling facility projects. During the EPCI phase we focus primarily on drilling systems engineering, procurement, commissioning and installation and we typically provide customer support during construction.
	At December 31, 2013, our marketable rig fleet consisted of 13 barge drilling rigs and 23 land rigs located in the United States, Latin America and the EMEA regions.
Consolidation	'
	Consolidation — The consolidated financial statements include the accounts of the Company and subsidiaries in which we exercise control or have a controlling financial interest, including entities, if any, in which the Company is allocated a majority of the entity’s losses or returns, regardless of ownership percentage. If a subsidiary of Parker Drilling has a 50 percent interest in an entity but Parker Drilling’s interest in the subsidiary or the entity does not meet the consolidation criteria described above, then that interest is accounted for under the equity method.
Noncontrolling Interest	'
	Noncontrolling Interest — We apply accounting standards related to noncontrolling interests for ownership interests in our subsidiaries held by parties other than Parker Drilling. The entities that comprise the noncontrolling interest include Parker SMNG Drilling Limited Liability Company and Primorsky Drill Rig Services B.V. We report noncontrolling interest as equity on the consolidated balance sheets and report net income (loss) attributable to controlling interest and to noncontrolling interest separately on the consolidated statements of operations.
Reclassifications	'
	Reclassifications — Certain reclassifications have been made to prior period amounts to conform with the current period presentation. These reclassifications did not materially affect our consolidated financial results.
Revenue Recognition	'
	Revenue Recognition — Contract drilling revenues and expenses, comprised of daywork drilling contracts, call-outs against MSAs and engineering and related project service contracts, are recognized as services are performed and collection is reasonably assured. For certain contracts, we receive payments contractually designated for the mobilization of rigs and other drilling equipment. Mobilization payments received, and direct costs incurred for the mobilization, are deferred and recognized over the term of the related drilling contract; however, costs incurred to relocate rigs and other drilling equipment to areas in which a contract has not been secured are expensed as incurred. Reimbursements received for out-of-pocket expenses are recorded as both revenues and direct costs. For contracts that are terminated prior to the specified term, early termination payments received by us are recognized as revenues when all contractual requirements are met. Revenues from rental activities are recognized ratably over the rental term which is generally less than six months. Construction contract revenues and costs are recognized on a percentage of completion basis utilizing the cost-to-cost method.
	During 2013 the Company entered into a FEED contract including long-lead equipment procurement services accounted for under the milestone method of revenue recognition. Milestone payments are based on achievement of specified procurement coordination and delivery events in regards to our customer's newly manufactured drilling rig. The quantity of specific long-lead items to be procured is spelled out in the contract and the payment terms are identified with each piece of equipment as well as each specific milestone. Management concluded that each of these payments, constitute substantive milestones. This conclusion was based primarily on the facts that (i) each triggering event represents a specific outcome that can be achieved only through successful performance by the Company of one or more of its deliverables, (ii) achievement of each triggering event was subject to inherent risk and uncertainty and would result in additional payments becoming due to the Company, (iii) each of the milestone payments is non-refundable, (iv) substantial effort is required to complete each milestone, (v) the amount of each milestone payment is reasonable in relation to the value created in achieving the milestone, and (vi) the milestone payments relate solely to past performance.
Reimbursable Costs	'
	Reimbursable Costs — The Company recognizes reimbursements received for out-of-pocket expenses incurred as revenues and accounts for out-of-pocket expenses as direct operating costs. Such amounts totaled $69.7 million, $44.9 million, and $64.2 million during the years ended December 31, 2013, 2012, and 2011, respectively. Additionally, the Company typically receives a nominal handling fee, which is recognized as earned in revenues in our consolidated statement of operations.
Use of Estimates	'
	Use of Estimates — The preparation of financial statements in accordance with U.S. GAAP requires us to make estimates and assumptions that affect our reported amounts of assets and liabilities, our disclosure of contingent assets and liabilities at the date of the financial statements, and our revenue and expenses during the periods reported. Estimates are typically used when accounting for certain significant items such as legal or contractual liability accruals, mobilization and deferred mobilization, revenue and cost accounting for projects that follow the percentage of completion method, self-insured medical/dental plans, and other items requiring the use of estimates. Estimates are based on a number of variables which may include third party valuations, historical experience, where applicable, and assumptions that we believe are reasonable under the circumstances. Due to the inherent uncertainty involved with estimates, actual results may differ from management estimates.
Acquisition Purchase Price Allocation	'
	Purchase price allocation — We allocate the purchase price of an acquired business to its identifiable assets and liabilities based on estimated fair values at the transaction date. Transaction and integration costs associated with an acquisition are expensed as incurred. The excess of the purchase price over the amount allocated to the assets and liabilities, if any, is recorded as goodwill. We use all available information to estimate fair values, including quoted market prices, the carrying value of acquired assets, and widely accepted valuation techniques such as discounted cash flows. We typically engage third-party appraisal firms to assist in fair value determination of inventories, identifiable intangible assets, and any other significant assets or liabilities. Judgments are made in determining the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, which can materially impact our results of operations.
Intangible Assets	'
	Intangible Assets – We recorded $10.0 million and $0.2 million, upon the ITS Acquisition, to recognize the fair values of definite and indefinite lived intangible assets, respectively. Preliminary estimates of fair value of identifiable assets acquired and liabilities assumed in the ITS Acquisition were based on management’s estimates, judgments and assumptions and are subject to change upon final valuation. As of December 31, 2013, the fair value estimate of the definite lived and indefinite lived intangibles have been adjusted to $8.5 million and zero, respectively. Definite lived intangible assets recorded in connection with the ITS Acquisition primarily relate to trade names, customer relationships, and developed technology and will be amortized over a weighted average period of approximately 3 years. See Note 2 - Acquisition of ITS for further discussion of the ITS Acquisition and preliminary fair value estimates.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents — For purposes of the consolidated balance sheets and the consolidated statements of cash flows, the Company considers cash equivalents to be highly liquid debt instruments that have a remaining maturity of three months or less at the date of purchase.
Accounts Receivable and Allowance for Doubtful Accounts	'
	Accounts Receivable and Allowance for Doubtful Accounts — Trade accounts receivable are recorded at the invoice amount and typically do not bear interest. The allowance for doubtful accounts is estimated for losses that may occur resulting from disputed amounts and the inability of our customers to pay amounts owed. We estimate the allowance based on historical write-off experience and information about specific customers. We review individually, for collectability, all balances over 90 days past due as well as balances due from any customer with respect to which we have information leading us to believe that a risk exist for potential collection.
	Account balances are charged off against the allowance when we believe it is probable the receivable will not be recovered. We do not have any off-balance-sheet credit exposure related to customers.
		December 31,
		2013			2012
		(Dollars in Thousands)
	Trade	$	270,498		$	176,082
	Notes receivable	244			650
	Allowance for doubtful accounts(1)	(12,853		)	(8,117		)
	Total accounts and notes receivable, net of allowance for bad debt	$	257,889		$	168,615
	-1	Additional information on the allowance for doubtful accounts for the years ended December 31, 2013, 2012 and 2011 is reported on Schedule II — Valuation and Qualifying Accounts.
Property, Plant and Equipment	'
	Property, Plant and Equipment — Property, plant and equipment is carried at cost. Maintenance and repair costs are expensed as incurred. The cost of upgrades and replacements is capitalized. The Company capitalizes software developed or obtained for internal use. Accordingly, the cost of third-party software, as well as the cost of third-party and internal personnel that are directly involved in application development activities, are capitalized during the application development phase of new software systems projects. Costs during the preliminary project stage and post-implementation stage of new software systems projects, including data conversion and training costs, are expensed as incurred. We account for depreciation of property, plant and equipment on the straight line method over the estimated useful lives of the assets after provision for salvage value. Depreciation, for tax purposes, utilizes several methods of accelerated depreciation. Depreciable lives for different categories of property, plant and equipment are as follows:
	Land drilling equipment		3 to 20 years
	Barge drilling equipment		3 to 20 years
	Drill pipe, rental tools and other		4 to 10 years
	Buildings and improvements		5 to 30 years
Annual Impairment Review	'
	Impairment — We review the carrying amounts of long-lived assets for potential impairment annually, typically during the fourth quarter, or when events occur or circumstances change that indicate the carrying value of such assets may not be recoverable. We determine recoverability by evaluating the undiscounted estimated future net cash flows. When impairment is indicated, we measure the impairment as the amount by which the assets’ carrying value exceeds its fair value. Management considers a number of factors such as estimated future cash flows from the assets, appraisals and current market value analysis in determining fair value. Assets are written down to fair value if the final estimate of current fair value is below the net carrying value.
Capitalized Interest	'
	Capitalized Interest — Interest from external borrowings is capitalized on major projects until the assets are ready for their intended use. Capitalized interest is added to the cost of the underlying asset and is amortized over the useful lives of the assets in the same manner as the underlying assets. Capitalized interest costs reduce net interest expense in the consolidated statements of operations. During 2013, 2012 and 2011, capitalized interest costs were $2.4 million, $10.2 million and $19.3 million, respectively.
Assets Held for Sale	'
	Assets held for sale — We classify an asset as held for sale when the facts and circumstances meet the criteria for such classification, including the following: (a) we have committed to a plan to sell the asset, (b) the asset is available for immediate sale, (c) we have initiated actions to complete the sale, including locating a buyer, (d) the sale is expected to be completed within one year, (e) the asset is being actively marketed at a price that is reasonable relative to its fair value, and (f) the plan to sell is unlikely to be subject to significant changes or termination.
Rig Materials and Supplies	'
	Rig Materials and Supplies — Because our international drilling generally occurs in remote locations, making timely outside delivery of spare parts uncertain, a complement of parts and supplies is maintained either at the drilling site or in warehouses close to the operation. During periods of high rig utilization, these parts are generally consumed and replenished within a one-year period. During a period of lower rig utilization in a particular location, the parts, like the related idle rigs, are generally not transferred to other international locations until new contracts are obtained because of the significant transportation costs that would result from such transfers. We classify those parts which are not expected to be utilized in the following year as long-term assets. Additionally, our international rental tools business holds machine shop consumables and steel stock for manufacture in our machine shops and inspection and repair shops. Rig materials and supplies are valued at the lower of cost or market value.
Deferred Costs	'
	Deferred Costs — We defer costs related to rig mobilization and amortize such costs over the term of the related contract. The costs to be amortized within twelve months are classified as current.
Debt Issuance Costs	'
	Debt Issuance Costs — We typically defer costs associated with issuance of indebtedness, and amortize those costs over the term of the related debt using the effective interest method.
Income Taxes	'
	Income Taxes — Income taxes are accounted for under the asset and liability method and have been provided based upon tax laws and rates in effect in the countries in which operations are conducted and income is earned. There is little or no expected relationship between the provision for or benefit from income taxes and income or loss before income taxes as the countries in which we operate have taxation regimes that vary not only with respect to nominal rate, but also in terms of the availability of deductions, credits, and other benefits. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences are expected to be recovered or settled and the effect of changes in tax rates is recognized in income in the period in which the change is enacted. Accordingly, the impact of the Mexican tax reform, which was enacted October 31, 2013, has been recognized in 2013. The Company recognizes the effect of income tax positions only if those positions are more likely than not to be sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized and changes in recognition or measurement are reflected in the period in which the change in judgment occurs.
Earnings (Loss) Per Share (EPS)	'
	Earnings (Loss) Per Share (EPS) — Basic earnings (loss) per share is computed by dividing net income by the weighted average number of common shares outstanding during the period. The effects of dilutive securities, stock options, unvested restricted stock and convertible debt are included in the diluted EPS calculation, when applicable.
Concentrations of Credit Risk	'
	Concentrations of Credit Risk — Financial instruments, that potentially subject the Company to concentrations of credit risk consist primarily of trade receivables with a variety of national and international oil and natural gas companies. We generally do not require collateral on our trade receivables.
	At December 31, 2013 and 2012, we had deposits in domestic banks in excess of federally insured limits of approximately $104.3 million and $12.2 million, respectively. The increase is primarily because as of January 1, 2013, all regular checking account deposits are only guaranteed up to $250,000 at each institution while prior to January 1, 2013, all regular checking account deposits were guaranteed, except investments. In addition, we had deposits in foreign banks, which were not insured at December 31, 2013 and 2012 of $50.1 million and $34.5 million, respectively.
	Our customer base primarily consists of major, independent and national oil and natural gas companies and integrated service providers. We depend on a limited number of significant customers. Our largest customer, Exxon Neftegas Limited constituted 15.6 percent of our revenues for 2013.
Fair Value Measurements	'
	Fair value measurements— For purposes of recording fair value adjustments for certain financial and non-financial assets and liabilities, and determining fair value disclosures, we estimate fair value at a price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal market for the asset or liability. Our valuation technique requires inputs that we categorize using a three-level hierarchy, from highest to lowest level of observable inputs, as follows: (1) unadjusted quoted prices for identical assets or liabilities in active markets (Level 1), (2) direct or indirect observable inputs, including quoted prices or other market data, for similar assets or liabilities in active markets or identical assets or liabilities in less active markets (Level 2) and (3) unobservable inputs that require significant judgment for which there is little or no market data (Level 3). When multiple input levels are required for a valuation, we categorize the entire fair value measurement according to the lowest level of input that is significant to the measurement even though we may have also utilized significant inputs that are more readily observable.
Derivative Financial Instruments	'
	Derivative Financial Instruments — We periodically use derivative instruments to manage risks associated with changes in associated interest rate fluctuations in connection with our Secured Credit Agreement (see Note 9, Derivative Financial Instruments). These derivative instruments, which consist of variable-to-fixed interest rate swaps, are not designated as hedges. Accordingly, the change in the fair value of the interest rate swaps is recognized in earnings at each reporting period.
Foreign Currency	'
	Foreign Currency — In our international rental tool business, for certain subsidiaries and branches outside the U.S., the local currency is the functional currency. The financial statements of these subsidiaries and branches are translated into U.S. dollars as follows: (i) assets and liabilities at month-end exchange rates; (ii) income, expenses and cash flows at monthly average exchange rates or exchange rates in effect on the date of the transaction; and (iii) stockholders’ equity at historical exchange rates. For those subsidiaries where the local currency is the functional currency, the resulting translation adjustment is recorded as a component of accumulated other elements of comprehensive income (loss) in the accompanying consolidated balance sheets.
Stock-Based Compensation	'
	Stock-Based Compensation — Under our long term incentive plans, we grant restricted stock awards (RSA), restricted stock units (RSU) and performance-based award units (PAU). Our RSUs and RSAs are service-based awards and compensation expense is recognized ratably over the applicable vesting period, which is typically three years. The grant-date fair value of nonvested RSAs and RSUs is determined based on the closing trading price of the company’s shares on the grant date. Our RSAs and RSUs are settled in stock upon vesting. Share-based compensation expense is recognized, net of an estimated forfeiture rate, which is based on historical experience and adjusted, if necessary, in subsequent periods based on actual forfeitures. Our PAU awards contain market conditions which are based on our performance against our peers with regard to relative total shareholder return (TSR) and absolute and relative return on capital employed (ROCE). The effect of the market condition is reflected in the grant-date fair value of the award using a lattice model for valuation. PAUs can be settled in cash or stock, or a combination of cash and stock. We evaluate the terms of each PAU award to determine if the award should be accounted for as equity or a liability under the stock compensation rules of U.S. GAAP. Compensation costs for PAUs is recognized ratably over the service period.
	We recognize share-based compensation expense in the same financial statement line item as cash compensation paid to the respective employees. Tax deduction benefits for awards in excess of recognized compensation costs are reported as a financing cash flow.
Recent Accounting Pronouncements	'
	Fair value measurements — Effective January 1, 2012, we adopted the accounting standards update that changes the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements. Some of the amendments included in this update are intended to clarify the applications of existing fair value measurement requirements. The update is effective for annual periods beginning after December 15, 2011. This adoption did not have a material effect on the disclosures contained in our notes to the consolidated financial statements.
	Comprehensive Income — On January 1, 2012, we adopted an update issued by the FASB to existing guidance on the presentation of comprehensive income. The update eliminates the option to present the components of other comprehensive income (OCI) as part of the statement of changes in stockholders’ equity. Public entities are required to comply with the new reporting requirements for fiscal years beginning after December 15, 2011 and interim periods within those years. Calendar year-end companies must adopt the requirements for the quarter ended March 31, 2012. The adoption of this update did not have a material impact on our financial position, results of operations, cash flows, or disclosures.
	Impairment — In July 2012, the FASB issued an update to existing guidance on the impairment assessment of indefinite-lived intangibles. This update simplifies the impairment assessment of indefinite-lived intangibles by allowing companies to consider qualitative factors to determine whether it is more likely than not that the fair value of an indefinite-lived intangible asset is less than its carrying amount before performing the two step impairment review process. The adoption of this update did not have an impact on our condensed consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Total Accounts and Notes Receivable	'
		December 31,
		2013			2012
		(Dollars in Thousands)
	Trade	$	270,498		$	176,082
	Notes receivable	244			650
	Allowance for doubtful accounts(1)	(12,853		)	(8,117		)
	Total accounts and notes receivable, net of allowance for bad debt	$	257,889		$	168,615
	-1	Additional information on the allowance for doubtful accounts for the years ended December 31, 2013, 2012 and 2011 is reported on Schedule II — Valuation and Qualifying Accounts.
Summary of Depreciable Lives for Different Categories of Property Plant and Equipment	'
	Depreciable lives for different categories of property, plant and equipment are as follows:
	Land drilling equipment		3 to 20 years
	Barge drilling equipment		3 to 20 years
	Drill pipe, rental tools and other		4 to 10 years
	Buildings and improvements		5 to 30 years

Acquisitions_of_ITS_Tables

Acquisitions of ITS (Tables)	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Schedule of Business Acquisition	'
	The final allocation of consideration will include changes in (1) amounts deposited in escrow, (2) estimated fair values of property and equipment, (3) allocations to intangible assets and liabilities, (4) changes in contingent consideration, and (5) other assets and liabilities. These amounts will be finalized as soon as possible, but no later than one year from the acquisition date.
		April 22, 2013
		(In thousands)
	Cash and cash equivalents	$	7,009
	Accounts and notes receivable, net (1)	50,043
	Other current assets	1,803
	Accounts payable and accrued liabilities	(39,156		)
	Accrued income taxes	(1,251		)
	Working capital excluding rig materials and supplies	18,448
	Rig materials and supplies	11,514
	Property, plant and equipment, net (2)	73,863
	Investment in joint venture	4,134
	Other noncurrent assets	2,818
	Total tangible assets	110,777
	Deferred income tax assets - current	222
	Deferred income tax assets - noncurrent (3)	11,249
	Intangible assets (4)	8,500
	Total assets acquired	130,748
	Other long-term liabilities	(211		)
	Long-term deferred tax liability	(2,856		)
	Net assets acquired	127,681
	Less: Noncontrolling interest (5)	(2,681		)
	Total consideration transferred	$	125,000
	(1) Gross contractual amounts receivable totaled $55.9 million as of the acquisition date.
	(2) We recorded an adjustment of $40.2 million to reduce the historical carrying value of the acquired property, plant and equipment to its estimated fair value.
	(3) In connection with the ITS Acquisition, we recorded a $5.0 million adjustment to increase deferred income tax assets primarily related to the differences between acquisition date estimated fair value and tax basis of acquired property, plant and equipment.
	(4) We recorded $8.5 million to reflect the estimated fair value of definite lived intangible assets recognized in connection with the ITS Acquisition. Our depreciation and amortization expense will reflect this valuation adjustment as the definite lived intangible assets are amortized in future periods. Definite lived intangible assets recorded in connection with the ITS Acquisition, which primarily relate to trade names, customer relationships, and developed technology will be amortized over a weighted average period of approximately 3.4 years.
	(5) We recorded an adjustment of $1.0 million to write-down the noncontrolling interest to its estimated fair value. The estimated fair value of the noncontrolling interest was calculated as a percentage of the net assets acquired related to certain subsidiaries in which ITS holds less than a 100 percent controlling interest. The fair value of the net assets of these subsidiaries was primarily based on the income approach valuation model.
	The following details the fair value of the consideration transferred to effect the ITS Acquisition (dollars in thousands).
	Cash paid to, or on behalf of, ITS and its equity holders	$	101,000
	Cash deposited in escrow	19,000
	Fair value of contingent consideration deposited in escrow for assets not acquired (1)	5,000
	Total fair value of the consideration transferred	$	125,000
	(1)    Based on the terms of the acquisition agreement, $5.0 million of the $24.0 million in escrow to be paid to the seller is contingent upon certain future liabilities that could become due by ITS in certain jurisdictions. Any payments in relation to these liabilities will be deducted from the $5.0 million escrow amount and the net balance of the escrow will be paid to the seller. We estimate that the entire $5.0 million in escrow will be paid to the seller, and therefore, the estimated fair value of the consideration in escrow related to these liabilities is $5.0 million. We do not expect to receive any amount back from escrow, and therefore did not record a receivable from the escrow. Any changes to the fair value of the contingent consideration in the future of less than $5.0 million will result in recording a receivable from escrow. The receivable will be recorded at fair value. As of December 31, 2013, the fair value of the receivable is $0.0 million.
Schedule of Pro Forma Information for Business Acquisition	'
	The following unaudited supplemental pro forma results present consolidated information for the years ended December 31, 2013 and 2012 as if the ITS Acquisition had been completed on January 1, 2012.  The pro forma results have been calculated after applying our accounting policies and include, among others, (i) the amortization associated with the fair value of the acquired intangible assets, (ii) interest expense associated with the Goldman Term Loan and (iii) the impact of certain fair value adjustments such as a decrease in depreciation expense related to the write-down in property, plant and equipment. The pro forma results do not include any potential synergies, non-recurring charges which result directly from the ITS Acquisition, cost savings or other expected benefits of the ITS Acquisition. The pro forma financial information does not necessarily represent what would have occurred if the transaction had taken place at the beginning of the period presented and should not be taken as representative of our future consolidated results of operations. We have not concluded our integration work. Accordingly, this pro forma information does not include all costs related to the integration nor the benefits we expect to realize from operating synergies.
		Year ended December 31,
		(unaudited)
		2013			2012
		(Dollars in thousands, except per share data)
	Revenue	$	914,992		$	794,640
	Net income	$	45,785		$	(14,117	)
	Net income attributable to Parker Drilling	$	45,391		$	(13,981	)
	Earnings per share - basic	$	0.38		$	(0.12	)
	Earnings per share - diluted	$	0.37		$	(0.12	)
	Basic number of shares	119,284,468			117,721,135
	Diluted number of shares	121,224,550			119,093,590

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Schedule of accumulated other comprehensive income	'
	Accumulated other comprehensive loss consisted of the following:
		Foreign Currency Items
		(in thousands)
	December 31, 2012	$	—
	Current period other comprehensive income	1,888
	December 31, 2013	$	1,888

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Summary of Income (Loss) Before Income Taxes	'
	Income (loss) before income taxes is summarized below:
		Year Ended December 31,
		2013			2012				2011
		(Dollars in Thousands)
	United States	$	32,136		$	52,422			$	(61,434	)
	Foreign	20,651			18,555				(3,978		)
		$	52,787		$	70,977			$	(65,412	)
Summary of Income Tax Expense (Benefit)	'
	Income tax expense (benefit) is summarized as follows:
		Year Ended December 31,
		2013			2012				2011
		(Dollars in Thousands)
	Current:
	United States:
	Federal	$	(3,658	)	$	7,791			$	17,168
	State	1,968			733				1,264
	Foreign	14,599			9,518				15,176
	Deferred:
	United States:
	Federal	10,720			15,612				(46,694		)
	State	2,820			4,296				1,864
	Foreign	(841		)	(4,071		)		(3,545		)
		$	25,608		$	33,879			$	(14,767	)
Schedule of Income Tax Reconciliation from Federal Income Tax Statutory Rate	'
	Total income tax expense differs from the amount computed by multiplying income before income taxes by the U.S. federal income tax statutory rate. The reasons for this difference are as follows:
		Year Ended December 31,
		2013						2012						2011
		(Dollars in thousands)
		Amount			% of Pre-Tax			Amount				% of Pre-Tax		Amount			% of Pre-Tax
					Income							Income					Income
	Computed Expected Tax Expense	$	18,476		35	%		$	24,842			35	%	$	(22,894	)	35	%
	Foreign Taxes	12,470			24	%		13,171				19	%	11,752			(17	)%
	Tax Effect Different From Statutory Rates	(8,920		)	(17	)%		(8,080		)		(11	)%	(1,571		)	2	%
	State Taxes, net of federal benefit	4,099			8	%		4,757				7	%	2,689			(4	)%
	Foreign Tax Credits	(1,484		)	(3	)%		(1,867		)		(3	)%	(14,595		)	22	%
	Kazakhstan Tax Settlement	—			—	%		—				—	%	(536		)	1	%
	Change in Valuation Allowance	1,975			4	%		(1,662		)		(2	)%	2,542			(4	)%
	Uncertain Tax Positions	2,472			5	%		(6,642		)		(9	)%	3,647			(6	)%
	Permanent Differences	4,005			7	%		5,477				8	%	6,356			(10	)%
	Prior Year Return to Provision Adjustments	(6,268		)	(12	)%		4,057				5	%	4,156			(6	)%
	Other	(1,217		)	(2	)%		(174		)		(1	)%	(829		)	1	%
	Unremitted Foreign Earnings-Current Year Adjustment	—			—	%		—				—	%	(5,484		)	8	%
	Actual Tax Expense	$	25,608		49	%		$	33,879			48	%	$	(14,767	)	22	%
Components of Deferred Tax Assets and Liabilities	'
	The components of the Company’s deferred tax assets and liabilities as of December 31, 2013 and 2012 are shown below:
		December 31,
		2013			2012
		(Dollars in Thousands)
	Deferred tax assets
	Current deferred tax assets:
	Reserves established against realization of certain assets	$	1,504		$	1,634
	Accruals not currently deductible for tax purposes	7,223			6,747
	Other state deferred tax asset, net	990			361
	Foreign Local Office	223			—
	Gross current deferred tax assets	9,940			8,742
	Current deferred tax valuation allowance	—			—
	Net current deferred tax assets	9,940			8,742
	Non-current deferred tax assets:
	Federal net operating loss carryforwards	—			—
	State net operating loss carryforwards	864			3,095
	Other state deferred tax asset, net	1,909			914
	Foreign Tax Credits	27,462			25,977
	FIN 48	8,317			8,015
	Foreign tax	18,499			5,838
	Asset Impairment	48,743			56,190
	Accruals not currently deductible for tax purposes	1,017			—
	Deferred compensation	2,436			—
	Other	—			71
	Gross long-term deferred tax assets	109,247			100,100
	Valuation Allowance	(6,827		)	(4,805		)
	Net non-current deferred tax assets, net of valuation allowance	102,420			95,295
	Net deferred tax assets	112,360			104,037
	Deferred tax liabilities:
	Non-current deferred tax liabilities:
	Property, Plant and equipment	(32,505		)	(19,139		)
	Accruals	—			(1,066		)
	Foreign tax local	(1,440		)	—
	Deferred Compensation	—			2,001
	Other state deferred tax liability, net	(4,819		)	(2,643		)
	Other	(3		)	—
	Gross non-current deferred tax liabilities	(38,767		)	(20,847		)
	Net deferred tax asset	$	73,593		$	83,190
Reconciliation of Unrecognized Tax Benefits	'
	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
		In Thousands
	Balance at January 1, 2013	$	(10,030	)
	Additions based on tax positions taken during a prior period	(3,245		)
	Reductions related to settlement of tax matters	1,066
	Reductions related to a lapse of applicable statute of limitations	—
	Balance at December 31, 2013	$	(12,209	)
Open Tax Years by Major Tax Jurisdiction	'
	The following describes the open tax years, by major tax jurisdiction, as of December 31, 2013:
	Colombia	2008-present
	Kazakhstan	2007-present
	Mexico	2008-present
	Papua New Guinea	2010-present
	Russia	2010-present
	United States — Federal	2011-present
	United Kingdom	2010-present

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Summary of Company's Current Debt Portfolio	'
	The following table illustrates the Company’s current debt portfolio as of December 31, 2013 and December 31, 2012:
		December 31,
		2013		2012
		(Dollars in Thousands)
	7.50% Senior Notes, due August 2020	$	225,000	$	—
	9.125% Senior Notes, due April 2018	428,781		429,205
	Term Note - Effective interest rate of 3.21 percent at December 31, 2012	—		50,000
	Total debt	653,781		479,205
	Less current portion	25,000		10,000
	Total long-term debt	$	628,781	$	469,205

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Values and Related Carrying Values of Debt Instruments	'
	Fair value of our debt instruments is determined using Level 2 inputs. Fair values and related carrying values of our debt instruments are as follows:
		December 31, 2013				December 31, 2012
		Carrying Amount		Fair Value		Carrying Amount		Fair Value
		(in thousands)
	Long-term Debt
	7.50% Notes	$	225,000	$	236,250	$	—	$	—
	9.125% Notes	425,000		446,250		425,000		453,688
	Total	$	650,000	$	682,500	$	425,000	$	453,688

Common_Stock_and_Stockholders_1

Common Stock and Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Summary of Long-Term Incentive Plans	'
	Information regarding the Company’s Long-Term Incentive plans is summarized below:
	Nonvested Shares	Shares		Weighted
				Average
				Grant-Date
				Fair
				Value
	Nonvested at January 1, 2013	2,812,482		$	5.15
	Granted	2,602,973		4.77
	Vested	(1,636,373	)	5
	Forfeited	(370,727	)	5.02
	Nonvested at December 31, 2013	3,408,355		$	4.97

Reconciliation_of_Income_and_N1

Reconciliation of Income and Number of Shares Used to Calculate Basic and Diluted Earnings per Share (EPS) (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Summary of Reconciliation of Income and Number of Shares Used to Calculate Basic and Diluted Earnings per Share (EPS)	'
			For the Year Ended December 31, 2013
			Income			Shares	Per-Share
			(Numerator)			(Denominator)	Amount
		Basic EPS	$	27,015,000		119,284,468	$	0.23
		Effect of dilutive securities:
		Stock options and restricted stock				1,940,082	$	(0.01	)
		Diluted EPS	$	27,015,000		121,224,550	$	0.22
			For the Year Ended December 31, 2012
			Income			Shares	Per-Share
			(Numerator)			(Denominator)	Amount
		Basic EPS	$	37,313,000		117,721,135	$	0.32
		Effect of dilutive securities:
		Stock options and restricted stock				1,372,455	$	(0.01	)
		Diluted EPS:	$	37,313,000		119,093,590	$	0.31
			For the Year Ended December 31, 2011
			Income			Shares	Per-Share
			(Numerator)			(Denominator)	Amount
		Basic EPS	$	(50,451,000	)	116,081,590	$	(0.43	)
		Effect of dilutive securities:
		Stock options and restricted stock				—	$	—
		Diluted EPS:	$	(50,451,000	)	116,081,590	$	(0.43	)

Reportable_Segments_Tables

Reportable Segments (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Results of Operations by Reportable Segment	'
	We eliminate inter-segment revenue and expenses. The following table represents the results of operations by reportable segment:
		Year Ended December 31,
	Operations by Reportable Industry Segment:	2013			2012			2011
		(Dollars in Thousands)
	Revenues:
	Rental Tools(1)	$	310,041		$	246,900		$	237,068
	U.S. Barge Drilling(1)	136,855			123,672			93,763
	U.S. Drilling(1)	66,928			1,387			—
	International Drilling(1)	333,962			291,772			318,481
	Technical Services(1)	26,386			14,030			27,284
	Construction Contract(1)	—			—			9,638
	Total revenues	874,172			677,761			686,234
	Operating income:
	Rental Tools(2)	91,164			113,899			120,822
	U.S. Barge Drilling(2)	51,257			39,608			11,115
	U.S. Drilling(2)	(4,484		)	(15,168		)	(3,915		)
	International Drilling(2)	23,732			13,138			22,948
	Technical Services(2)	2,050			79			5,680
	Construction Contract(2)	4,728			—			771
	Total operating gross margin	168,447			151,556			157,421
	General and administrative expense	(68,025		)	(46,257		)	(31,567		)
	Impairments and other charges	—			—			(170,000		)
	Provision for reduction in carrying value of certain assets	(2,544		)	—			(1,350		)
	Gain on disposition of assets, net	3,994			1,974			3,659
	Total operating income (loss)	101,872			107,273			(41,837		)
	Interest expense	(47,820		)	(33,542		)	(22,594		)
	Interest income	2,450			153			256
	Loss on extinguishment of debt	(5,218		)	(2,130		)	—
	Changes in fair value of derivative positions	53			55			(110		)
	Other	1,450			(832		)	(1,127		)
	Income (loss) from continuing operations before income taxes	$	52,787		$	70,977		$	(65,412	)
		2013			2012
	Identifiable assets:
	Rental Tools	$	350,429		$	194,600
	U.S. Barge Drilling	89,884			99,409
	U.S. Drilling	354,208			369,683
	International Drilling	460,461			414,546
	Total identifiable assets	1,254,982			1,078,238
	Corporate and other assets(3)	279,774			177,495
	Total assets	$	1,534,756		$	1,255,733
	1)	In 2013, our largest customer, Exxon Neftegas Limited (ENL), constituted approximately 15.6 percent, respectively, of our total consolidated revenues and approximately 38.3 percent of our International Drilling segment and 33.9 percent of our Technical Services segment. In 2012, our two largest customers, ENL and Schlumberger, constituted approximately 12 percent and 10 percent, respectively, of our total consolidated revenues and approximately 27 percent and 24 percent of our International Drilling segment, respectively. In 2011, our largest customer, ENL constituted approximately 16 percent of our total revenues and approximately 34 percent of our International Drilling segment.
	2)	Operating income is calculated as revenues less direct operating expenses, including depreciation and amortization expense.
	3)	This category includes corporate assets as well as minimal assets for our Technical Services segment primarily related to office furniture and fixtures.
Operations by Industry Segment	'
		Year Ended December 31,
	Operations by Reportable Industry Segment:	2013			2012			2011
		(Dollars in Thousands)
	Capital expenditures:
	Rental Tools	$	76,928		$	61,958		$	61,702
	U.S. Barge Drilling	23,694			8,808			7,339
	U.S. Drilling	1,809			86,786			99,915
	International Drilling	39,115			15,240			15,011
	Corporate	14,099			18,751			6,432
	Total capital expenditures	$	155,645		$	191,543		$	190,399
	Depreciation and amortization:
	Rental Tools	54,625			42,944			40,497
	U.S. Barge Drilling	13,796			13,906			17,006
	U.S. Drilling	16,120			7,011			2,223
	International Drilling	46,022			45,967			48,965
	Corporate and other (1)	3,490			3,189			3,445
	Total depreciation and amortization	$	134,053		$	113,017		$	112,136
	1)	This category includes depreciation of corporate assets as well as minimal depreciation for our Technical Services segment primarily related to office furniture and fixtures.
Operations by Geographical Area	'
		Year Ended December 31,
	Operations by Geographic Area:	2013			2012			2011
		(Dollars in Thousands)
	Revenues:
	Africa and Middle East	$	58,416		$	26,528		$	6,774
	Asia Pacific	170,165			117,392			147,643
	CIS	55,165			44,312			67,255
	Europe	16,788			—			—
	Latin America	120,261			103,540			96,810
	United States	453,377			385,989			367,752
	Total revenues	874,172			677,761			686,234
	Operating gross margin:
	Africa and Middle East(1)	(383		)	(2,027		)	(8,724		)
	Asia Pacific(1)	21,995			16,550			23,528
	CIS(1)	11,888			(9,580		)	8,709
	Europe(1)	274			—			—
	Latin America(1)	1,140			9,581			1,126
	United States(1)	133,533			137,032			132,782
	Total operating gross margin	168,447			151,556			157,421
	General and administrative expense	(68,025		)	(46,257		)	(31,567		)
	Impairments and other charges	—			—			(170,000		)
	Provision for reduction in carrying value of certain assets	(2,544		)	—			(1,350		)
	Gain on disposition of assets, net	3,994			1,974			3,659
	Total operating income (loss)	101,872			107,273			(41,837		)
	Interest expense	(47,820		)	(33,542		)	(22,594		)
	Interest income	2,450			153			256
	Loss on extinguishment of debt	(5,218		)	(2,130		)	—
	Changes in fair value of derivative positions	53			55			(110		)
	Other	1,450			(832		)	(1,127		)
	Income (loss) from continuing operations before income taxes	$	52,787		$	70,977		$	(65,412	)
	Long-lived assets:(2)
	Africa and Middle East	$	110,336		$	25,032
	Asia Pacific	44,606			18,688
	CIS	55,722			110,848
	Europe	82,473			—
	Latin America	15,198			63,899
	United States	563,021			574,730
	Total long-lived assets	$	871,356		$	793,197
	1)	Operating income is calculated as revenues less direct operating expenses, including depreciation and amortization expense.
	2)	Long-lived assets primarily consist of property, plant and equipment, net and exclude assets held for sale, if any.

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Lease Payments Under Operating Leases with Non Cancelable Terms	'
	Future minimum lease payments at December 31, 2013, under operating leases with non-cancelable terms are as follows:
		Year Ended
		December 31,
		(Dollars in Thousands)
	2014	13,979
	2015	9,488
	2016	7,592
	2017	7,114
	2018	5,944
	Thereafter	7,988
	Total	$	52,105

Parent_Guarantor_NonGuarantor_1

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Consolidating Condensed Statement of Operations	'
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
	(Dollars in Thousands)
	(Unaudited)
		Year ended December 31, 2013
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	Total revenues	$	—		$	468,073		$	549,295		$	(143,196	)	$	874,172
	Operating expenses	—			252,211			462,657			(143,196		)	571,672
	Depreciation and amortization	—			77,416			56,637			—			134,053
	Total operating gross margin	—			138,446			30,001			—			168,447
	General and administration expense (1)	(202		)	(67,083		)	(740		)	—			(68,025		)
	Provision for reduction in carrying value of certain assets	—			—			(2,544		)	—			(2,544		)
	Gain on disposition of assets, net	—			1,759			2,235			—			3,994
	Total operating income (loss)	(202		)	73,122			28,952			—			101,872
	Other income and (expense):
	Interest expense	(51,439		)	(335		)	(9,930		)	13,884			(47,820		)
	Changes in fair value of derivative positions	53			—			—			—			53
	Interest income	3,824			1,761			10,749			(13,884		)	2,450
	Loss on extinguishment of debt	(5,218		)	—			—			—			(5,218		)
	Other	(1		)	(143		)	1,594			—			1,450
	Equity in net earnings of subsidiaries	55,430			—			—			(55,430		)	—
	Total other income (expense)	2,649			1,283			2,413			(55,430		)	(49,085		)
	Income (loss) before income taxes	2,447			74,405			31,365			(55,430		)	52,787
	Income tax expense (benefit):
	Current	(21,431		)	18,737			15,603			—			12,909
	Deferred	(3,137		)	19,454			(3,618		)	—			12,699
	Income tax expense (benefit)	(24,568		)	38,191			11,985			—			25,608
	Net income (loss)	27,015			36,214			19,380			(55,430		)	27,179
	Less: Net (loss) attributable to noncontrolling interest	—			—			164			—			164
	Net income (loss) attributable to controlling interest	$	27,015		$	36,214		$	19,216		$	(55,430	)	$	27,015
	-1	General and administration expenses for field operations are included in operating expenses.
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
	(Dollars in Thousands)
	(Unaudited)
		Year ended December 31, 2012
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	Total revenues	$	—		$	393,738		$	385,279		$	(101,256	)	$	677,761
	Operating expenses	—			184,946			329,498			(101,256		)	413,188
	Depreciation and amortization	—			65,354			47,663			—			113,017
	Total operating gross margin	—			143,438			8,118			—			151,556
	General and administration expense (1)	(182		)	(45,758		)	(317		)	—			(46,257		)
	Gain on disposition of assets, net	—			775			1,199			—			1,974
	Total operating income (loss)	(182		)	98,455			9,000			—			107,273
	Other income and (expense):
	Interest expense	(37,326		)	(151		)	(8,739		)	12,674			(33,542		)
	Interest income	9,863			5,073			41,999			(56,782		)	153
	Loss on extinguishment of debt	(2,130		)	—			—			—			(2,130		)
	Changes in fair value of derivative positions	55			—			—			—			55
	Other	—			(206		)	(626		)	—			(832		)
	Equity in net earnings of subsidiaries	43,884			—			—			(43,884		)	—
	Total other income (expense)	14,346			4,716			32,634			(87,992		)	(36,296		)
	Income (loss) before income taxes	14,164			103,171			41,634			(87,992		)	70,977
	Income tax expense (benefit):
	Current	(25,406		)	32,781			10,667			—			18,042
	Deferred	2,257			15,429			(1,849		)	—			15,837
	Income tax expense (benefit)	(23,149		)	48,210			8,818			—			33,879
	Net income (loss)	37,313			54,961			32,816			(87,992		)	37,098
	Less: Net (loss) attributable to noncontrolling interest	—			—			(215		)	—			(215		)
	Net income (loss) attributable to controlling interest	37,313			54,961			33,031			(87,992		)	37,313
	______________________
	-1	General and administration expenses for field operations are included in operating expenses.
	PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATING CONDENSED STATEMENT OF OPERATIONS
(Dollars in Thousands)
(Unaudited)
	Year ended December 31, 2011
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Total revenues	$	—		$	375,798		$	426,491		$	(116,055	)	$	686,234
Operating expenses	—			174,955			357,777			(116,055		)	416,677
Depreciation and amortization	—			62,744			49,392			—			112,136
Total operating gross margin	—			138,099			19,322			—			157,421
General and administration expense (1)	(218		)	(30,968		)	(381		)	—			(31,567		)
Impairment and other charges	—			(170,000		)	—			—			(170,000		)
Provision for reduction in carrying value of certain assets	—			(1,350		)	—			—			(1,350		)
Gain on disposition of assets, net	—			2,706			953			—			3,659
Total operating income (loss)	(218		)	(61,513		)	19,894			—			(41,837		)
Other income and (expense):
Interest expense	(26,654		)	(17,889		)	(8,865		)	30,814			(22,594		)
Interest income	18,131			750			12,189			(30,814		)	256
Loss on extinguishment of debt	—			—			—			—			—
Changes in fair value of derivative positions	(110		)	—			—			—			(110		)
Other	—			(315		)	(812		)	—			(1,127		)
Equity in net earnings of subsidiaries	(23,484		)	—			—			23,484			—
Total other income and (expense)	(32,117		)	(17,454		)	2,512			23,484			(23,575		)
Income (loss) before income taxes	(32,335		)	(78,967		)	22,406			23,484			(65,412		)
Income tax expense (benefit):
Current	(13,402		)	27,169			19,841			—			33,608
Deferred	31,518			(57,030		)	(22,863		)	—			(48,375		)
Total income tax expense (benefit)	18,116			(29,861		)	(3,022		)	—			(14,767		)
Net income (loss)	(50,451		)	(49,106		)	25,428			23,484			(50,645		)
Less: Net (loss) attributable to noncontrolling interest	$	—		$	—		$	(194	)	$	—		$	(194	)
Net income (loss) attributable to controlling interest	(50,451		)	(49,106		)	25,622			23,484			(50,451		)
_______________________
-1	General and administration expenses for field operations are included in operating expenses.
Consolidating Condensed Balance Sheet	'
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATING CONDENSED BALANCE SHEET
	(Dollars in Thousands)
	(Unaudited)
		31-Dec-13
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	ASSETS
	Current assets:
	Cash and cash equivalents	$	88,697		$	8,310		$	51,682		$	—		$	148,689
	Accounts and notes receivable, net	—			101,299			156,590			—			257,889
	Rig materials and supplies	—			3,002			38,779			—			41,781
	Deferred costs	—			—			13,682			—			13,682
	Deferred income taxes	(57		)	8,435			1,562			—			9,940
	Other tax assets	54,524			(46,770		)	16,325			—			24,079
	Other current assets	—			9,089			14,134			—			23,223
	Total current assets	143,164			83,365			292,754			—			519,283
	Property, plant and equipment, net	60			562,148			309,148			—			871,356
	Investment in subsidiaries and intercompany advances	1,906,128			(336,570		)	1,667,937			(3,237,495		)	—
	Other noncurrent assets	(457,954		)	468,864			250,983			(117,776		)	144,117
	Total assets	$	1,591,398		$	777,807		$	2,520,822		$	(3,355,271	)	$	1,534,756
	LIABILITIES AND STOCKHOLDERS’ EQUITY
	Current liabilities:
	Current portion of long-term debt	$	25,000		$	—		$	—		$	—		$	25,000
	Accounts payable and accrued liabilities	75,268			92,546			261,436			(254,364		)	174,886
	Accrued income taxes	—			725			6,541			—			7,266
	Total current liabilities	100,268			93,271			267,977			(254,364		)	207,152
	Long-term debt	628,781			—			—			—			628,781
	Other long-term liabilities	5,037			6,743			15,134			—			26,914
	Long-term deferred tax liability	—			51,747			(12,980		)	—			38,767
	Intercompany payables	227,504			291,783			422,645			(941,932		)	—
	Contingencies	—			—			—			—			—
	Stockholders’ equity:
	Common stock	20,075			18,049			43,003			(61,052		)	20,075
	Capital in excess of par value	657,349			740,438			1,572,919			(2,313,357		)	657,349
	Accumulated other comprehensive income	—			—			1,888			—			1,888
	Retained earnings (accumulated deficit)	(47,616		)	(424,224		)	208,790			215,434			(47,616		)
	Total controlling interest stockholders’ equity	629,808			334,263			1,826,600			(2,158,975		)	631,696
	Noncontrolling interest	—			—			1,446			—			1,446
	Total Equity	629,808			334,263			1,828,046			(2,158,975		)	633,142
	Total liabilities and stockholders’ equity	$	1,591,398		$	777,807		$	2,520,822		$	(3,355,271	)	$	1,534,756
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATING CONDENSED BALANCE SHEET
	(Dollars in Thousands)
	(Unaudited)
		31-Dec-12
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	ASSETS
	Current assets:
	Cash and cash equivalents	$	42,251		$	11,023		$	34,612		$	—		$	87,886
	Accounts and notes receivable, net	(7		)	77,927			90,695			—			168,615
	Rig materials and supplies	—			2,835			26,587			—			29,422
	Deferred costs	—			—			1,089			—			1,089
	Deferred income taxes	—			7,615			1,127			—			8,742
	Other tax assets	46,249			(31,136		)	18,411			—			33,524
	Other current assets	—			8,708			4,145			—			12,853
	Total current assets	88,493			76,972			176,666			—			342,131
	Property, plant and equipment, net	60			548,794			244,343			—			793,197
	Investment in subsidiaries and intercompany advances	1,492,708			(523,143		)	1,467,617			(2,437,182		)	—
	Other noncurrent assets	(378,297		)	370,877			219,196			(91,371		)	120,405
	Total assets	$	1,202,964		$	473,500		$	2,107,822		$	(2,528,553	)	$	1,255,733
	LIABILITIES AND STOCKHOLDERS’ EQUITY
	Current liabilities:
	Current portion of long-term debt	$	10,000		$	—		$	—		$	—		$	10,000
Accounts payable and accrued liabilities	65,839			94,037			205,864			(227,994		)	137,746
Accrued income taxes	—			612			3,508			—			4,120
Total current liabilities	75,839			94,649			209,372			(227,994		)	151,866
Long-term debt	469,205			—			—			—			469,205
Other long-term liabilities	3,933			6,129			13,120			—			23,182
Long-term deferred tax liability	—			36,894			(16,047		)	—			20,847
Intercompany payables	62,583			43,657			216,369			(322,609		)	—
Contingencies	—			—			—			—			—
Stockholders’ equity:
Common stock	19,818			18,049			43,003			(61,052		)	19,818
Capital in excess of par value	646,217			733,112			1,455,246			(2,188,358		)	646,217
Retained earnings (accumulated deficit)	(74,631		)	(458,990		)	187,530			271,460			(74,631		)
Total controlling interest stockholders’ equity	591,404			292,171			1,685,779			(1,977,950		)	591,404
Noncontrolling interest	—			—			(771		)	—			(771		)
Total Equity	591,404			292,171			1,685,008			(1,977,950		)	590,633
Total liabilities and stockholders’ equity	$	1,202,964		$	473,500		$	2,107,822		$	(2,528,553	)	$	1,255,733
Consolidated Condensed Statements of Cash Flows	'
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
	(Dollars in Thousands)
	(Unaudited)
		Year Ended December 31, 2013
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	Cash flows from operating activities:
	Net income (loss)	$	27,015		$	36,214		$	19,380		$	(55,430	)	$	27,179
	Adjustments to reconcile net income (loss) to net cash provided by operating activities:
	Depreciation and amortization	—			77,416			56,637			—			134,053
	Loss on extinguishment of debt	5,218			—			—			—			5,218
	Gain on disposition of assets	—			(1,759		)	(2,235		)	—			(3,994		)
	Deferred income tax expense	(3,137		)	19,454			(3,618		)	—			12,699
	Provision for reduction in carrying value of certain assets	—			—			2,544			—			2,544
	Expenses not requiring cash	13,173			12			4,579			—			17,764
	Equity in net earnings of subsidiaries	(55,430		)	—			—			55,430			—
	Change in accounts receivable	(7		)	(12,888		)	(20,617		)	—			(33,512		)
	Change in other assets	74,411			(85,520		)	487			—			(10,622		)
	Change in accrued income taxes	6,617			(1,052		)	4,889			—			10,454
	Change in liabilities	6,934			(877		)	(6,343		)	—			(286		)
	Net cash provided by (used in) operating activities	74,794			31,000			55,703			—			161,497
	Cash flows from investing activities:
	Capital expenditures	—			(94,269		)	(61,376		)	—			(155,645		)
	Proceeds from the sale of assets	—			3,725			4,493			—			8,218
	Acquisition of ITS, net of cash acquired	—			(6,903		)	(111,088		)	—			(117,991		)
	Intercompany dividend payment	—			—			—			—			—
	Net cash (used in) investing activities	—			(97,447		)	(167,971		)	—			(265,418		)
	Cash flows from financing activities:
	Proceeds from debt issuance	350,000			—			—			—			350,000
	Proceeds from draw on revolver credit facility	—			—			—			—			—
	Repayment of long term debt	(125,000		)	—			—			—			(125,000		)
	Repayment of term loan	(50,000		)	—			—			—			(50,000		)
	Paydown on revolver credit facility	—			—			—			—			—
	Payment of debt issuance costs	(11,172		)	—			—			—			(11,172		)
	Payment of debt extinguishment costs	—			—			—			—			—
	Excess tax benefit from stock-based compensation	896			—			—			—			896
	Intercompany advances, net	(193,072		)	63,734			129,338			—			—
	Net cash provided by (used in) financing activities	(28,348		)	63,734			129,338			—			164,724
	Net change in cash and cash equivalents	46,446			(2,713		)	17,070			—			60,803
	Cash and cash equivalents at beginning of year	42,251			11,023			34,612			—			87,886
	Cash and cash equivalents at end of year	$	88,697		$	8,310		$	51,682		$	—		$	148,689
	See accompanying notes to unaudited consolidated condensed financial statements.
	PARKER DRILLING COMPANY AND SUBSIDIARIES
	CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
	(Dollars in Thousands)
	(Unaudited)
		Year Ended December 31, 2012
		Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
	Cash flows from operating activities:
	Net income (loss)	$	37,313		$	54,961		$	32,816		$	(87,992	)	$	37,098
	Adjustments to reconcile net income (loss)to net cash provided by operating activities:
	Depreciation and amortization	—			65,354			47,663			—			113,017
	Loss on extinguishment of debt	2,130			—			—			—			2,130
	Gain on disposition of assets	—			(775		)	(1,199		)	—			(1,974		)
	Deferred income tax expense	2,257			15,429			(1,849		)	—			15,837
	Expenses not requiring cash	16,558			33,644			(27,602		)	—			22,600
	Equity in net earnings of subsidiaries	(43,884		)	—			—			43,884			—
	Change in accounts receivable	(445		)	(1,788		)	17,474			—			15,241
	Change in other assets	1,649			2,060			(9,200		)	—			(5,491		)
	Change in accrued income taxes	(4,055		)	220			(2,267		)	—			(6,102		)
	Change in liabilities	3,914			(4,158		)	(2,413		)	—			(2,657		)
	Net cash provided by (used in) operating activities	15,437			164,947			53,423			(44,108		)	189,699
	Cash flows from investing activities:
Capital expenditures	—			(176,333		)	(15,210		)	—			(191,543		)
Proceeds from the sale of assets	—			2,062			1,875			—			3,937
Intercompany dividend payment	(8,387		)	(4,357		)	(31,364		)	44,108			—
Net cash provided by (used in) investing activities	(8,387		)	(178,628		)	(44,699		)	44,108			(187,606		)
Cash flows from financing activities:
Proceeds from debt issuance	130,000			—			—			—			130,000
Proceeds from draw on revolver credit facility	7,000			—			—			—			7,000
Paydown on senior notes	(125,000		)	—			—			—			(125,000		)
Paydown on term note	(18,000		)	—			—			—			(18,000		)
Paydown on revolver credit facility	—			—			—			—			—
Payment of debt issuance costs	(4,859		)	—			—			—			(4,859		)
Payment of debt extinguishment costs	(555		)	—			—			—			(555		)
Excess tax benefit from stock-based compensation	(662		)	—			—			—			(662		)
Intercompany advances, net	(8,393		)	20,492			(12,099		)	—			—
Net cash provided by (used in) financing activities	(20,469		)	20,492			(12,099		)	—			(12,076		)
Net change in cash and cash equivalents	(13,419		)	6,811			(3,375		)	—			(9,983		)
Cash and cash equivalents at beginning of year	55,670			4,212			37,987			—			97,869
Cash and cash equivalents at end of year	$	42,251		$	11,023		$	34,612		$	—		$	87,886
See accompanying notes to unaudited consolidated condensed financial statements.
PARKER DRILLING COMPANY AND SUBSIDIARIES
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
(Dollars in Thousands)
(Unaudited)
	Year Ended December 31, 2011
	Parent			Guarantor			Non-Guarantor			Eliminations			Consolidated
Cash flows from operating activities:
Net income (loss)	$	(50,451	)	$	(49,106	)	$	25,428		$	23,484		$	(50,645	)
Adjustments to reconcile net income (loss)to net cash provided by operating activities:
Depreciation and amortization	—			62,744			49,392			—			112,136
Loss on extinguishment of debt	—			—			—			—			—
Gain on disposition of assets	—			(2,706		)	(953		)	—			(3,659		)
Deferred income tax expense	31,518			(57,030		)	(22,863		)	—			(48,375		)
Impairment and other charges	—			170,000			—			—			170,000
Provision for reduction in carrying value of certain assets	—			1,350			—			—			1,350
Expenses not requiring cash	16,411			376			(3,954		)	—			12,833
Equity in net earnings of subsidiaries	23,484			—			—			(23,484		)	—
Change in accounts receivable	(288,333		)	347,344			(65,852		)	—			(6,841		)
Change in other assets	62,173			(16,724		)	16,404			—			61,853
Change in accrued income taxes	(12,852		)	(2,053		)	17,046			—			2,141
Change in liabilities	2,398			(51,351		)	24,045			—			(24,908		)
Net cash provided by (used in) operating activities	(215,652		)	402,844			38,693			—			225,885
Cash flows from investing activities:
Capital expenditures	—			(174,999		)	(15,400		)	—			(190,399		)
Proceeds from the sale of assets	—			4,335			1,200			—			5,535
Proceeds from insurance settlements	—			250			—			—			250
Intercompany dividend payment	—			—			—			—			—
Net cash provided by (used in) investing activities	—			(170,414		)	(14,200		)	—			(184,614		)
Cash flows from financing activities:
Proceeds from debt issuance	50,000			—			—			—			50,000
Paydown on term note	(21,000		)	—			—			—			(21,000		)
Paydown on revolver credit facility	(25,000		)	—			—			—			(25,000		)
Payment of debt issuance costs	(504		)	—			—			—			(504		)
Payment of debt extinguishment costs	—			—			—			—			—
Proceeds from stock options exercised	183			—			—			—			183
Excess tax benefit from stock-based compensation	1,488			—			—			—			1,488
Intercompany advances, net	252,320			(230,535		)	(21,785		)	—			—
Net cash provided by (used in) financing activities	257,487			(230,535		)	(21,785		)	—			5,167
Net change in cash and cash equivalents	41,835			1,895			2,708			—			46,438
Cash and cash equivalents at beginning of year	13,835			2,317			35,279			—			51,431
Cash and cash equivalents at end of year	$	55,670		$	4,212		$	37,987		$	—		$	97,869
See accompanying notes to unaudited consolidated condensed financial statements.

Selected_Quarterly_Financial_D1

Selected Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Selected Quarterly Financial Data	'
		Quarter
	Year 2013	First		Second		Third		Fourth			Total
		(Dollars in Thousands Except Per Share Amounts)
		(Unaudited)
	Revenues	$	167,135	$	225,954	$	237,762	$	243,321		$	874,172
	Operating gross margin(2)	$	20,877	$	50,273	$	48,733	$	48,564		$	168,447
	Operating income	$	9,180	$	28,587	$	35,589	$	28,516		$	101,872
	Net income attributable to controlling interest	$	592	$	8,281	$	7,970	$	10,172		$	27,015
	Basic earnings per share — net income(1)	$	0	$	0.07	$	0.07	$	0.08		$	0.23
	Diluted earnings per share — net income(1)	$	0	$	0.07	$	0.07	$	0.08		$	0.22
		Quarter
	Year 2012	First		Second		Third		Fourth			Total
		(Dollars in Thousands Except Per Share Amounts)
		(Unaudited)
	Revenues	$	176,495	$	178,895	$	165,200	$	157,171		$	677,761
	Operating gross margin(2)	$	53,744	$	46,914	$	34,261	$	16,637		$	151,556
	Operating income	$	48,689	$	40,978	$	25,903	$	(8,297	)	$	107,273
	Net income (loss) attributable to controlling interest	$	26,392	$	20,083	$	10,936	$	(20,098	)	$	37,313
	Basic earnings per share — net income (loss)(1)	$	0.23	$	0.17	$	0.09	$	(0.17	)	$	0.32
	Diluted earnings per share — net income (loss)(1)	$	0.22	$	0.17	$	0.09	$	(0.17	)	$	0.31
	1)	As a result of shares issued during the year, earnings per share for each of the year’s four quarters, which are based on weighted average shares outstanding during each quarter, may not equal the annual earnings per share, which is based on the weighted average shares outstanding during the year. Additionally, as a result of rounding to the thousands, revenues, operating gross margin, operating income, and net income (loss) attributable to controlling interest may not equal the 2013 year to date results.
	2)	As the Company modified its reporting segments to be consistent with recent organizational changes to improve our drilling organization, expenses related to our U.S. Barge Drilling segment were found to be incorrectly included in our general and administrative expense during the first through third quarters of the current year. These expenses have been appropriately reclassified to be included as part of the segment operating expenses, therefore our operating gross margin for each of the first three quarters will not agree to the respective 10-Q reports for the current year only.

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Apr. 22, 2013

Dec. 31, 2013

rig

segment

Customer

ITS [Member]

ITS [Member]

country

rig

country

Revenue, Major Customer [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of countries with operations

24

'

'

'

'

'

'

'

24

'

'

'

'

Number of countries with international rental tools operations

10

'

'

'

'

'

'

'

10

'

'

'

'

Number of operating segments

'

'

'

'

'

'

'

'

5

'

'

'

'

Barge drilling rigs

13

'

'

'

'

'

'

'

13

'

'

'

'

Land rings

23

'

'

'

'

'

'

'

23

'

'

'

'

Percentage accounted for under the equity method

50.00%

'

'

'

'

'

'

'

50.00%

'

'

'

'

Reimbursement cost

'

'

'

'

'

'

'

'

$69,700,000

$44,900,000

$64,200,000

'

'

Definite-lived intangible asset

'

'

'

'

'

'

'

'

'

'

'

'

10,000,000

Indefinite-lived intangible asset

'

'

'

'

'

'

'

'

'

'

'

'

200,000

Adjusted amount for definite lived intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

8,500,000

Adjusted amount for indefinite lived intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

0

Definite lived assets, weighted average useful life

'

'

'

'

'

'

'

'

'

'

'

'3 years 4 months 24 days

'3 years

Collection period

'

'

'

'

'

'

'

'

'90 days

'

'

'

'

Capitalized interest costs of construction of rigs

'

'

'

'

'

'

'

'

2,400,000

10,200,000

19,300,000

'

'

Consumed and replenished period

'

'

'

'

'

'

'

'

'1 year

'

'

'

'

Rate of recognized income tax position being realized

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

Deposits in domestic bank

104,300,000

'

'

'

12,200,000

'

'

'

104,300,000

12,200,000

'

'

'

Deposits in foreign banks

50,100,000

'

'

'

34,500,000

'

'

'

50,100,000

34,500,000

'

'

'

Number of major customer

'

'

'

'

'

'

'

'

'

2

'

'

'

Percentage of revenue from major customer

'

'

'

'

'

'

'

'

15.60%

'

'

'

'

Contract margin

$48,564,000

$48,733,000

$50,273,000

$20,877,000

$16,637,000

$34,261,000

$46,914,000

$53,744,000

$168,447,000

$151,556,000

$157,421,000

'

'

Share-based awards vesting period

'

'

'

'

'

'

'

'

'3 years

'

'

'

'

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Summary of Total Accounts and Notes Receivable (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accounting Policies [Abstract]	'	'
Trade	$270,498	$176,082
Notes receivable	244	650
Allowance for doubtful accounts	-12,853	-8,117
Total accounts and notes receivable, net of allowance for bad debt	$257,889	$168,615

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Summary of Depreciable Lives for Different Categories of Property Plant and Equipment (Detail)	12 Months Ended
	Dec. 31, 2013
Land Drilling Equipment [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'3 years
Land Drilling Equipment [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'20 years
Barge Drilling Equipment [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'3 years
Barge Drilling Equipment [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'20 years
Drill Pipe, Rental Tools and Other [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'4 years
Drill Pipe, Rental Tools and Other [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'10 years
Buildings and Improvements [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'5 years
Buildings and Improvements [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Barge drilling equipment, useful life	'30 years

Acquisitions_of_ITS_Narrative_

Acquisitions of ITS - Narrative (Details) (USD $)

3 Months Ended

12 Months Ended

0 Months Ended

9 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Jul. 30, 2013

Dec. 31, 2012

Jul. 30, 2013

Apr. 22, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Sep. 30, 2013

Jul. 30, 2013

Dec. 31, 2013

Term Loan [Member]

Term Loan [Member]

7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]

7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]

7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]

ITS [Member]

ITS [Member]

ITS [Member]

ITS [Member]

ITS [Member]

ITS [Member]

ITS [Member]

ITS [Member]

Term Loan [Member]

7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]

7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]

Accounts Receivable [Member]

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash paid to, or on behalf of, ITS and its equity holders

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$101,000,000

'

'

'

'

'

'

Cash paid for acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

24,000,000

'

'

'

'

'

'

Amount released from escrow funds

5,000,000

'

'

'

'

'

'

'

5,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of contingent consideration deposited in escrow for assets not acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,000,000

'

'

'

'

'

'

Assets, Fair Value Disclosure

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

Debt issuance costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,400,000

'

'

'

Long-term Debt

653,781,000

'

'

'

479,205,000

'

'

'

653,781,000

479,205,000

'

0

50,000,000

225,000,000

'

0

'

'

'

'

125,000,000

'

'

'

Proceeds from issuance of term note

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

225,000,000

'

'

'

'

'

'

'

Acquisition related costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

22,500,000

'

'

'

'

Debt instrument fixed interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

7.50%

7.50%

'

'

'

'

'

'

'

7.50%

'

Deferred acquisition costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,200,000

'

'

Revenues

243,321,000

237,762,000

225,954,000

167,135,000

157,171,000

165,200,000

178,895,000

176,495,000

874,172,000

677,761,000

686,234,000

'

'

'

'

'

'

'

88,000,000

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

$27,179,000

$37,098,000

($50,645,000)

'

'

'

'

'

'

'

$10,000,000

'

'

'

'

'

Acquisitions_of_ITS_Fair_Value

Acquisitions of ITS - Fair Value of Consideration Transferred (Details) (ITS [Member], USD $)	0 Months Ended
In Thousands, unless otherwise specified	Apr. 22, 2013
ITS [Member]	'
Business Acquisition [Line Items]	'
Cash paid to, or on behalf of, ITS and its equity holders	$101,000
Cash deposited in escrow	19,000
Fair value of contingent consideration deposited in escrow for assets not acquired	5,000
Total fair value of the consideration transferred	$125,000

Acquisitions_of_ITS_Preliminar

Acquisitions of ITS - Preliminary Allocation of Consideration Transferred (Details) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 22, 2013	Dec. 31, 2013
					ITS [Member]	ITS [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'
Cash and cash equivalents	'	'	'	'	$7,009,000	'
Accounts and notes receivable, net	'	'	'	'	50,043,000	'
Other current assets	'	'	'	'	1,803,000	'
Accounts payable and accrued liabilities	'	'	'	'	-39,156,000	'
Accrued income taxes	'	'	'	'	-1,251,000	'
Working capital excluding rig materials and supplies	'	'	'	'	18,448,000	'
Rig materials and supplies	'	'	'	'	11,514,000	'
Property, plant and equipment, net	'	'	'	'	73,863,000	'
Investment in joint venture	'	'	'	'	4,134,000	'
Other noncurrent assets	'	'	'	'	2,818,000	'
Total tangible assets	'	'	'	'	110,777,000	'
Deferred income tax assets - current	'	'	'	'	222,000	'
Deferred income tax assets - noncurrent	'	'	'	'	11,249,000	'
Intangible Assets	'	'	'	'	'	'
Trade name, developed technology, and customer relationship	'	'	'	'	8,500,000	'
Total assets acquired	'	'	'	'	130,748,000	'
Other long-term liabilities	'	'	'	'	-211,000	'
Long-term deferred tax liability	'	'	'	'	-2,856,000	'
Net assets acquired	'	'	'	'	127,681,000	'
Less: Noncontrolling interest	'	'	'	'	-2,681,000	'
Total consideration transferred	'	'	'	'	125,000,000	'
Accounts and notes receivable, gross	'	'	'	'	55,900,000	'
Adjustment to record property, plant and equipment to fair value	170,000,000	0	0	170,000,000	40,200,000	'
Increase in deferred income tax asset	'	12,699,000	15,837,000	-48,375,000	5,000,000	'
Intangible assets acquired	'	'	'	'	8,500,000	'
Weighted average useful life	'	'	'	'	'3 years 4 months 24 days	'3 years
Impairment of non-controlling interest	'	'	'	'	$1,000,000	'

Acquisitions_of_ITS_Supplement

Acquisitions of ITS - Supplemental Proforma (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]	'	'
Net income attributable to Parker Drilling	$45,391	($13,981)
ITS [Member]	'	'
Business Acquisition [Line Items]	'	'
Revenue	914,992	794,640
Net income	$45,785	($14,117)
Earnings per share - basic (in dollars per share)	$0.38	($0.12)
Earnings per share - diluted (in dollars per share)	$0.37	($0.12)
Basic number of shares (in shares)	119,284,468	117,721,135
Diluted number of shares (in shares)	121,224,550	119,093,590

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Accumulated Other Comprehensive Income Reclassifications [Roll Forward]	'
Beginning balance	$0
Current period other comprehensive income	1,888
Ending balance	$1,888

Asset_Impairment_Additional_In

Asset Impairment - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	rig	Rigs	rig		Rigs
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'
Number of rigs combined	'	2	'	'	2
Current estimated cost of rigs	'	$385,000,000	'	'	$385,000,000
Estimated total capitalized interest	'	50,700,000	'	'	50,700,000
Carrying value of rigs	'	339,500,000	'	'	339,500,000
Impairments and other charges	'	170,000,000	0	0	170,000,000
Asset Impairment charge after tax	'	109,100,000	'	'	'
Fair value of rigs	'	169,500,000	'	'	169,500,000
Discounted rate of interests	'	10.00%	'	'	'
Number of Land Rigs classification assets held for sale	2	'	5	'	'
Impairment of property, plant and equipment	'	'	0	0	170,000,000
Number of rigs expected to be sold during the year	'	'	3	'	'
Charge related to final settlement for a bankruptcy proceeding	'	1,400,000	'	'	1,400,000
Assets Held for Sale and Used [Member]	'	'	'	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'
Impairment of property, plant and equipment	1,900,000	'	'	'	'
Assets Held for Sale and Used [Member] | Level 3 [Member]	'	'	'	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'
Impairment of property, plant and equipment	600,000	'	'	'	'

Disposition_of_Assets_Addition

Disposition of Assets - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended			3 Months Ended
	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2013	Sep. 30, 2013
					New Zealand [Member]	Oklahoma [Member]	Mexico [Member]
					rig
Significant Acquisitions and Disposals [Line Items]	'	'	'	'	'	'	'
Number of land rigs sold	'	'	'	'	2	'	'
Assets held-for-sale, at carrying value	'	'	'	'	$2,300,000	'	$300,000
Asset dispositions, proceeds	200,000	'	'	'	3,200,000	800,000	500,000
Asset dispositions, loss	500,000	'	500,000	'	900,000	-100,000	200,000
Provision for reduction in carrying value of certain assets	'	$2,544,000	$0	$1,350,000	'	'	'

Assets_Held_for_Sale_Additiona

Assets Held for Sale - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2013
	rig	rig	rig
Property, Plant and Equipment [Abstract]	'	'	'
Number of Land Rigs classification assets held for sale	2	'	5
Number of Rigs Reclassified from Held-for-sale to Assets Held for Use and Inventory	2	3	'
Depreciation expense on reclassified assets	'	$0.70	'
Impairment of property, plant and equipment	$1.90	'	'

Income_Taxes_Summary_of_Compon

Income Taxes - Summary of Components of Income (Loss) Before Income Taxes (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
United States	$32,136	$52,422	($61,434)
Foreign	20,651	18,555	-3,978
Income (loss) before income taxes	$52,787	$70,977	($65,412)

Income_Taxes_Summary_of_Income

Income Taxes - Summary of Income Tax Expense (Benefit) (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:	'	'	'
Federal	($3,658)	$7,791	$17,168
State	1,968	733	1,264
Foreign	14,599	9,518	15,176
Deferred:	'	'	'
Federal	10,720	15,612	-46,694
State	2,820	4,296	1,864
Foreign	-841	-4,071	-3,545
Total income tax expense (benefit)	$25,608	$33,879	($14,767)

Income_Taxes_Schedule_of_Incom

Income Taxes - Schedule of Income Tax Reconciliation from Federal Income Tax Statutory Rate (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Reconciliation [Line Items]	'	'	'
Computed Expected Tax Expense, Amount	$18,476	$24,842	($22,894)
Foreign Taxes, Amount	12,470	13,171	11,752
Tax Effect Different From Statutory Rates, Amount	-8,920	-8,080	-1,571
State Taxes, net of Federal Benefit, Amount	4,099	4,757	2,689
Foreign Tax Credits, Amount	-1,484	-1,867	-14,595
Change in Valuation Allowance, Amount	1,975	-1,662	2,542
Uncertain Tax Positions, Amount	2,472	-6,642	3,647
Permanent Differences, Amount	4,005	5,477	6,356
Prior Year Return to Provision Adjustments, Amount	-6,268	4,057	4,156
Other, Amount	-1,217	-174	-829
Unremitted Foreign Earnings-Current Year Adjustment, Amount	0	0	-5,484
Actual Tax Expense, Amount	25,608	33,879	-14,767
Computed Expected Tax Expense, Percentage	35.00%	35.00%	35.00%
Foreign Taxes, Percentage	24.00%	19.00%	-17.00%
Tax Effect Different From Statutory Rates, Percentage	-17.00%	-11.00%	2.00%
State Taxes, net of Federal Benefit, Percentage	8.00%	7.00%	-4.00%
Foreign Tax Credits, Percentage	-3.00%	-3.00%	22.00%
Change in Valuation Allowance, Percentage	4.00%	-2.00%	-4.00%
Uncertain Tax Positions, percentage	5.00%	-9.00%	-6.00%
Permanent Differences, Percentage	7.00%	8.00%	-10.00%
Prior Year Return to Provision Adjustments, Percentage	-12.00%	5.00%	-6.00%
Other, Percentage	-2.00%	-1.00%	1.00%
Unremitted Foreign Earnings-Current Year Adjustment, Percentage	0.00%	0.00%	8.00%
Actual Tax Expense, Percentage	49.00%	48.00%	22.00%
Kazakhstan [Member]	'	'	'
Income Tax Reconciliation [Line Items]	'	'	'
Tax Settlement, Amount	$0	$0	($536)
Tax Settlement, Percentage	0.00%	0.00%	1.00%

Income_Taxes_Components_of_Def

Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current deferred tax assets:	'	'
Reserves established against realization of certain assets	$1,504	$1,634
Accruals not currently deductible for tax purposes	7,223	6,747
Other state deferred tax asset, net	990	361
Foreign Local Office	223	0
Gross current deferred tax assets	9,940	8,742
Valuation allowance	'	'
Net current deferred tax assets	9,940	8,742
Non-current deferred tax assets:	'	'
Federal net operating loss carryforwards	0	0
State net operating loss carryforwards	864	3,095
Other state deferred tax asset, net	1,909	914
Foreign Tax Credits	27,462	25,977
FIN 48	8,317	8,015
Foreign tax	18,499	5,838
Asset Impairment	48,743	56,190
Accruals not currently deductible for tax purposes	1,017	0
Deferred compensation	2,436	0
Other	0	71
Gross long-term deferred tax assets	109,247	100,100
Valuation Allowance	-6,827	-4,805
Non-current deferred tax assets, net of valuation allowance	102,420	95,295
Net deferred tax assets	112,360	104,037
Non-current deferred tax liabilities:	'	'
Property, Plant and equipment	-32,505	-19,139
Accruals	0	-1,066
Foreign tax local	-1,440	0
Deferred compensation	0	2,001
Other state deferred tax liability, net	-4,819	-2,643
Other	-3	0
Gross non-current deferred tax liabilities	-38,767	-20,847
Net deferred tax asset	$73,593	$83,190

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Line Items]	'	'	'
Decrease in valuation allowance	$2,000,000	$1,700,000	'
Depreciation and amortization	134,053,000	113,017,000	112,136,000
Total income tax expense (benefit)	25,608,000	33,879,000	-14,767,000
Non-cash pretax impairment charge relating to AADU rigs in Alaska	0	0	170,000,000
Increased valuation allowance	'	'	2,500,000
Liability for unrecognized tax benefits	12,209,000	10,030,000	'
Unrecognized tax benefits	5,400,000	'	'
Accrued interest and penalties related to uncertain tax positions	7,900,000	7,000,000	'
Increase of interest	900,000	'	'
Internal Revenue Service (IRS) [Member]	'	'	'
Income Tax Disclosure [Line Items]	'	'	'
Total income tax expense (benefit)	'	1,700,000	'
Foreign Tax Authority [Member]	'	'	'
Income Tax Disclosure [Line Items]	'	'	'
Reclassifications	'	1,300,000	5,600,000
Federal And State Jurisdiction [Member]	'	'	'
Income Tax Disclosure [Line Items]	'	'	'
Total income tax expense (benefit)	'	'	-60,900,000
Mexico [Member] | Foreign Tax Authority [Member]	'	'	'
Income Tax Disclosure [Line Items]	'	'	'
Total income tax expense (benefit)	-3,300,000	'	'
ALASKA [Member]	'	'	'
Income Tax Disclosure [Line Items]	'	'	'
Depreciation and amortization	$20,900,000	$7,700,000	'

Income_Taxes_Reconciliation_of

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]	'
Beginning balance	($10,030)
Additions based on tax positions taken during a prior period	-3,245
Reductions related to settlement of tax matters	1,066
Reductions related to a lapse of applicable statute of limitations	0
Ending balance	($12,209)

Income_Taxes_Open_Tax_Years_by

Income Taxes - Open Tax Years by Major Tax Jurisdiction (Detail)	12 Months Ended
	Dec. 31, 2013
Colombia [Member]	'
Open Tax Years By Major Jurisdiction [Line Items]	'
Open Tax Years by Major Tax Jurisdiction	'2008-present
Kazakhstan [Member]	'
Open Tax Years By Major Jurisdiction [Line Items]	'
Open Tax Years by Major Tax Jurisdiction	'2007-present
Mexico [Member]	'
Open Tax Years By Major Jurisdiction [Line Items]	'
Open Tax Years by Major Tax Jurisdiction	'2008-present
Papua New Guinea [Member]	'
Open Tax Years By Major Jurisdiction [Line Items]	'
Open Tax Years by Major Tax Jurisdiction	'2010-present
Russia [Member]	'
Open Tax Years By Major Jurisdiction [Line Items]	'
Open Tax Years by Major Tax Jurisdiction	'2010-present
United States - Federal [Member]	'
Open Tax Years By Major Jurisdiction [Line Items]	'
Open Tax Years by Major Tax Jurisdiction	'2011-present
United Kingdom [Member]	'
Open Tax Years By Major Jurisdiction [Line Items]	'
Open Tax Years by Major Tax Jurisdiction	'2010-present

LongTerm_Debt_Summary_of_Compa

Long-Term Debt - Summary of Company's Current Debt Portfolio (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Total debt	$653,781	$479,205
Less current portion	25,000	10,000
Total long-term debt	628,781	469,205
7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]	'	'
Debt Instrument [Line Items]	'	'
Total debt	225,000	0
9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]	'	'
Debt Instrument [Line Items]	'	'
Total debt	428,781	429,205
Term Loan [Member]	'	'
Debt Instrument [Line Items]	'	'
Total debt	$0	$50,000

LongTerm_Debt_Summary_of_Compa1

Long-Term Debt - Summary of Company's Current Debt Portfolio (Parenthetical) (Detail)	12 Months Ended		12 Months Ended
	Dec. 31, 2013	Jul. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
	7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]	7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]	9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]	9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]	Term Loan [Member]
Debt Instrument [Line Items]	'	'	'	'	'
Debt instrument maturity date	'August 2020	'	'April 2018	'April 2018	'
Debt instrument fixed interest rate	7.50%	7.50%	9.13%	9.13%	'
Debt Instrument issuance date	'July 30, 2013	'	'April 25, 2012	'April 25, 2012	'
LIBOR plus	'	'	'	'	3.21%

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

31-May-08

Jul. 05, 2007

Apr. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 14, 2012

15-May-08

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Jul. 15, 2012

31-May-12

Jul. 15, 2012

9-May-12

Jul. 05, 2007

Dec. 31, 2013

Mar. 22, 2010

Apr. 25, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Jul. 30, 2013

Mar. 22, 2010

Mar. 22, 2010

9-May-12

Sep. 30, 2012

Jul. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 14, 2012

31-May-08

Dec. 31, 2013

Jul. 30, 2013

Dec. 31, 2013

Jul. 30, 2013

Apr. 18, 2013

Jan. 22, 2014

Jan. 22, 2014

Jan. 22, 2014

Jan. 07, 2014

Jan. 22, 2014

Dec. 31, 2013

Jan. 22, 2014

Dec. 31, 2013

Jan. 22, 2014

2.125% Convertible Senior Notes, due July 2012 Repayment of Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Secured Debt [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Existing Credit Agreement [Member]

Minimum [Member]

2.125% Convertible Senior Notes, due July 2012 [Member]

2.125% Convertible Senior Notes, due July 2012 [Member]

2.125% Convertible Senior Notes, due July 2012 [Member]

2.125% Convertible Senior Notes, due July 2012 [Member]

2.125% Convertible Senior Notes, due July 2012 [Member]

9.125% Senior Notes, due April 2018 (Issued March 22, 2010) [Member]

9.125% Senior Notes, due April 2018 (Issued March 22, 2010) [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

7.50% Senior Notes, due August 2020 [Member]

7.50% Senior Notes, due August 2020 [Member]

Senior Notes One [Member]

Line of Credit [Member]

Convertible Notes Payable [Member]

Convertible Notes Payable [Member]

Term Loan [Member]

Term Loan [Member]

Term Loan [Member]

Term Loan [Member]

Term Loan [Member]

Term Note Due April Twenty Eighteen [Member]

Term Note Due April Twenty Eighteen [Member]

Senior Notes Other [Member]

Secured Debt [Member]

Secured Debt [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Prior to August1, 2016 [Member]

Prior to August1, 2016 [Member]

On and after August 1, 2016 [Member]

On and after August 1, 2016 [Member]

Revolving Credit Facility [Member]

2.125% Convertible Senior Notes, due July 2012 Repayment of Debt [Member]

Secured Debt [Member]

Goldman Term Loan [Member]

Goldman Term Loan [Member]

6.75 Percent Senior Notes, due July 15, 2022 [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

Tendered Bonds [Member]

7.50% Senior Notes, due August 2020 [Member]

Subsequent Event [Member]

7.50% Senior Notes, due August 2020 [Member]

Subsequent Event [Member]

7.50 % Senior Notes [Member]

7.50 % Senior Notes [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current portion of long-term debt

$25,000,000

$10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of principal in 2018

3,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of principal after 2018

628,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate principal amount

'

'

'

'

125,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

125,000,000

'

300,000,000

125,000,000

'

'

'

225,000,000

'

'

'

'

'

'

'

'

'

'

'

'

125,000,000

125,000,000

'

360,000,000

'

'

416,200,000

'

'

'

'

Revolving loan outstanding

'

'

'

'

'

'

'

50,000,000

'

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

40,000,000

'

'

'

'

'

'

'

'

Repayments of long-term debt

125,000,000

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

45,000,000

'

'

'

'

'

'

'

'

'

'

'

416,200,000

'

'

'

'

'

'

Deferred acquisition costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,100,000

5,300,000

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument fixed interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9.13%

'

9.13%

9.13%

7.50%

7.50%

9.63%

'

'

2.13%

'

'

'

'

'

'

'

'

'

'

'

6.75%

9.13%

9.13%

'

'

'

'

'

Refinanced amount

400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

225,000,000

42,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Par value of senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

104.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross proceeds of aggregate principal amount additional issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

130,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repurchase of Convertible senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

122,900,000

'

'

'

'

'

'

'

'

'

'

122,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notes paid off

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,100,000

'

2,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,800,000

'

'

'

'

'

'

Debt issuance costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11,600,000

'

'

'

7,100,000

'

'

'

'

'

'

'

Debt issuance cost, Net of amortization

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,700,000

'

'

'

'

'

'

'

'

'

'

'

Percentage of the aggregate principal amount redeemed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35.00%

35.00%

'

'

Percentage of redemption price before notice

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

107.50%

106.75%

103.75%

10337.50%

Percentage of redemption price after notice

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

104.56%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of repurchase

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

101.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

101.00%

10100.00%

Redemption date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Apr-14

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tender offer price for each 1000 principal amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,003.27

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,061.98

'

1,061.98

'

'

'

'

'

Unit for which the tender offer price is calculated

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000

'

'

'

'

'

'

'

Tender offer price per note, consent payment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30

'

30

'

'

'

'

'

Payments of debt issuance costs

11,172,000

4,859,000

504,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

453,700,000

'

'

'

'

One time debt extinguishment cost

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior secured credit facility

'

'

'

'

'

'

'

'

80,000,000

80,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Increase in the amount of term loan or revolving credit facility

'

'

'

'

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate commitment amount

'

'

'

180,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturity of credit facility

'

'

'

'

'

'

'

'

'

'

14-Dec-17

'

'

14-May-13

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Variation in applicable rate for LIBOR Rate Loan

'

'

'

'

'

'

'

'

'

'

2.50%

'

2.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Variation in applicable rate for LIBOR Rate Loan

'

'

'

'

'

'

'

'

'

'

3.00%

'

3.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Variation in applicable rate for Base Rate Loan

'

'

'

'

'

'

'

'

'

'

1.50%

'

1.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Variation in applicable rate for Base Rate Loan

'

'

'

'

'

'

'

'

'

'

2.00%

'

2.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Letters of credit outstanding

'

'

'

'

'

'

'

'

'

'

4,600,000

4,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Term loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000,000

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Principal payments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,500,000

6,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Base rate plus

'

'

'

'

'

'

2.00%

2.25%

'

'

200.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

LIBOR plus

'

'

'

'

'

'

3.00%

3.25%

'

'

300.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.21%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tender offer costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,800,000

'

'

'

'

Accrued interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$11,700,000

'

'

'

'

LongTerm_Debt_Goldman_Term_Loa

Long-Term Debt - Goldman Term Loan (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 18, 2013	Jul. 30, 2013
				Goldman Term Loan [Member]	Goldman Term Loan [Member]
				Secured Debt [Member]	Secured Debt [Member]
Debt Instrument [Line Items]	'	'	'	'	'
Aggregate principal amount	'	'	'	$125,000,000	$125,000,000
Payments of debt extinguishment costs	$0	$555,000	$0	$5,200,000	'

LongTerm_Debt_Amended_and_Rest

Long-Term Debt - Amended and Restated Credit Agreement (Details) (USD $)	31-May-08	Dec. 31, 2013	Dec. 14, 2012	Apr. 30, 2011	Dec. 14, 2012	15-May-08	31-May-08	Dec. 31, 2013	Dec. 31, 2013	Jul. 30, 2013	Jul. 19, 2013
		Term Loan [Member]	Term Loan [Member]	Secured Debt [Member]	Secured Debt [Member]	Secured Debt [Member]	Secured Debt [Member]	Revolving Credit Facility [Member]	Revolving Credit Facility [Member]	Unsecured Debt [Member]	Unsecured Debt [Member]
							Term Loan [Member]		Minimum [Member]
Debt Instrument [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Senior secured credit facility	'	'	'	'	$80,000,000	$80,000,000	$50,000,000	'	'	'	'
Term loan	'	50,000,000	50,000,000	'	'	'	'	'	'	'	'
Maturity of credit facility	'	'	'	'	'	'	'	14-Dec-17	14-May-13	'	'
Increase in the amount of term loan or revolving credit facility	'	'	'	50,000,000	'	'	'	'	'	45,000,000	'
Aggregate commitment amount	180,000,000	'	'	'	'	'	'	'	'	'	250,000,000
Quarterly decrease in borrowing capacity	'	'	'	'	'	'	'	'	'	'	2,500,000
Maximum borrowing capacity in second year	'	'	'	'	'	'	'	'	'	'	40,000,000
Maximum borrowing capacity in third year	'	'	'	'	'	'	'	'	'	'	$37,500,000

LongTerm_Debt_Revolver_Details

Long-Term Debt - Revolver (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Revolving Credit Facility [Member]	'	'
Debt Instrument [Line Items]	'	'
Variation in applicable rate for LIBOR Rate Loan	2.50%	'
Variation in applicable rate for LIBOR Rate Loan	3.00%	'
Variation in applicable rate for Base Rate Loan	1.50%	'
Variation in applicable rate for Base Rate Loan	2.00%	'
Revolving loan outstanding	$0	$0
Letters of credit outstanding	$4,600,000	$4,500,000
Existing Credit Agreement [Member]	'	'
Debt Instrument [Line Items]	'	'
Variation in applicable rate for LIBOR Rate Loan	2.75%	'
Variation in applicable rate for LIBOR Rate Loan	3.25%	'
Variation in applicable rate for Base Rate Loan	1.75%	'
Variation in applicable rate for Base Rate Loan	2.25%	'

LongTerm_Debt_Term_Loan_Detail

Long-Term Debt - Term Loan (Details) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jul. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 14, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Jan. 22, 2014

Jan. 22, 2014

Term Loan [Member]

Term Loan [Member]

Term Loan [Member]

Term Loan [Member]

Revolving Credit Facility [Member]

Revolving Credit Facility [Member]

Secured Debt [Member]

Secured Debt [Member]

Subsequent Event [Member]

Subsequent Event [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Term loan

'

'

'

'

$50,000,000

'

$50,000,000

'

'

'

'

'

'

Principal payments

'

'

'

'

2,500,000

6,000,000

'

'

'

'

'

'

'

Base rate plus

'

'

'

'

'

'

'

200.00%

'

2.00%

2.25%

'

'

LIBOR plus

'

'

'

'

'

3.21%

'

300.00%

'

3.00%

3.25%

'

'

Revolving loan outstanding

'

'

'

'

'

'

'

0

0

'

50,000,000

40,000,000

'

Repayments of long-term debt

$125,000,000

$0

$0

$45,000,000

'

'

'

'

'

'

'

'

$416,200,000

Derivative_Financial_Instrumen1

Derivative Financial Instruments - Additional Information (Detail) (USD $)	Dec. 31, 2012	Jun. 30, 2011
In Millions, unless otherwise specified		Agreement
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'
Number of interest rate swap agreements	'	2
Notional amount of borrowings	'	$73
Interest rate derivatives fixed interest rate	'	3.88%
Fair value of the interest rate swap liability	$0.10	'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 22, 2013	Dec. 31, 2013	Dec. 31, 2012
					ITS [Member]	Significant Other Observable Inputs (Level 2) [Member]	Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'	'	'	'	'
Carrying amount of interest rate swap agreements	'	'	'	'	'	$0	$100,000
Carrying value of assets	339,500,000	'	'	339,500,000	'	'	'
Fair value	169,500,000	'	'	169,500,000	'	'	'
Impairments and other charges	$170,000,000	$0	$0	$170,000,000	$40,200,000	'	'

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments - Fair Values and Related Carrying Values of Debt Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Carrying Amount [Member]	'	'
Long-term Debt	'	'
Long-term Debt	$650,000	$425,000
Carrying Amount [Member] | 7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]	'	'
Long-term Debt	'	'
Long-term Debt	225,000	0
Carrying Amount [Member] | 9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]	'	'
Long-term Debt	'	'
Long-term Debt	425,000	425,000
Fair Value [Member]	'	'
Long-term Debt	'	'
Long-term Debt	682,500	453,688
Fair Value [Member] | 7.50% Senior Notes, due August 2020 (Issued July 30, 2013) [Member]	'	'
Long-term Debt	'	'
Long-term Debt	236,250	0
Fair Value [Member] | 9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]	'	'
Long-term Debt	'	'
Long-term Debt	$446,250	$453,688

Common_Stock_and_Stockholders_2

Common Stock and Stockholders' Equity - Additional Information (Detail) (USD $)	12 Months Ended							0 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Sep. 17, 2012	Sep. 17, 2012	Dec. 31, 2013	Dec. 31, 2013
				Performance Units [Member]	Performance Units [Member]	Performance Units [Member]	Nonvested RSUs [Member]	Chief Executive Officer [Member]	Chief Financial Officer [Member]	2010 Long-Term Incentive Plan [Member]	2010 Long-Term Incentive Plan [Member]
											Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Common stock granted	'	'	'	'	'	'	'	'	'	11,000,000	'
Share-based awards vesting period	'3 years	'	'	'	'	'	'	'	'	'	'
Restricted stock units, granted (in shares)	'	'	'	'	'	'	'	349,651	261,438	'	'
Restricted shares to selected key personnel	'	1,558,347	'	'	'	'	'	'	'	'	'
Compensation expense related to the performance units	$9.40	$7.20	$5.90	$1.80	$0.50	$2.10	'	'	'	'	'
Total fair value of the shares vested	7.4	5.2	6.9	'	'	'	'	'	'	'	'
Weighted-average grant-date fair value of shares granted (in usd per share)	$4.77	$5.37	$5.61	'	'	'	'	'	'	'	'
Non-vested restricted stock awards and restricted stock units (in shares)	'	2,812,482	'	'	'	'	3,408,355	'	'	'	'
Total unrecognized compensation cost of unamortized non-vested stock awards	'	'	'	'	'	'	$8.40	'	'	'	'
Weighted-average vesting period	'	'	'	'	'	'	'20 months 24 days	'	'	'	'
Performance units under 2010 Long Term Incentive Plan (in shares)	2,602,973	'	'	18,000	38,429	'	'	'	'	'	'
Performance units forfeited (in shares)	370,727	'	'	13,358	3,955	'	'	'	'	'	'
Nominal value	'	'	'	$100	'	'	'	'	'	'	'
Performance at the maximum level	'	'	'	'3 years	'	'	'	'	'	'	'
Performance period - awards percentage	'	'	'	200.00%	'	'	'	'	'	'	'
Stock option outstanding or exercisable (in shares)	0	0	'	'	'	'	'	'	'	'	5,130,182
Treasury stock shares (in shares)	668,897	1,709,963	'	'	'	'	'	'	'	'	'

Common_Stock_and_Stockholders_3

Common Stock and Stockholders' Equity - Summary of Long-Term Incentive Plans (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Shares	'	'	'
Nonvested beginning balance, shares	2,812,482	'	'
Granted, shares	2,602,973	'	'
Vested, shares	-1,636,373	'	'
Forfeited, shares	-370,727	'	'
Nonvested ending balance, shares	'	2,812,482	'
Weighted Average Grant-Date Fair Value	'	'	'
Nonvested beginning balance (in usd per share)	$5.15	'	'
Granted (in usd per share)	$4.77	$5.37	$5.61
Vested (in usd per share)	$5	'	'
Forfeited (in usd per share)	$5.02	'	'
Nonvested ending balance (in usd per share)	$4.97	$5.15	'

Reconciliation_of_Income_and_N2

Reconciliation of Income and Number of Shares Used to Calculate Basic and Diluted Earnings per Share (EPS) - Summary of Reconciliation of Income and Number of Shares Used to Calculate Basic and Diluted Earnings per Share (EPS) (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]	'	'	'	'	'	'	'	'	'	'	'
EPS, income	$10,172	$7,970	$8,281	$592	($20,098)	$10,936	$20,083	$26,392	$27,015	$37,313	($50,451)
Basic EPS, shares	'	'	'	'	'	'	'	'	119,284,468	117,721,135	116,081,590
Basic earnings per share:	$0.08	$0.07	$0.07	$0	($0.17)	$0.09	$0.17	$0.23	$0.23	$0.32	($0.43)
Stock options and restricted stock, shares	'	'	'	'	'	'	'	'	1,940,082	1,372,455	0
Stock options and restricted stock, per share amount	($0.01)	'	'	'	($0.01)	'	'	'	($0.01)	($0.01)	$0
Diluted EPS, shares	'	'	'	'	'	'	'	'	121,224,550	119,093,590	116,081,590
Diluted earnings per share:	$0.08	$0.07	$0.07	$0	($0.17)	$0.09	$0.17	$0.22	$0.22	$0.31	($0.43)

Employee_Benefit_Plan_Addition

Employee Benefit Plan - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]	'	'	'
Plan contributions cost	$3.60	$2.80	$2.40
Participation waiting period	'30 days	'	'
First 4 percent of employees pre-tax contributions [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]	'	'	'
Employee vested percentage	100.00%	'	'
Next 2 percent of employees pre-tax contributions [Member]	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]	'	'	'
Employee vested percentage	50.00%	'	'

Reportable_Segments_Results_of

Reportable Segments - Results of Operations by Reportable Segment (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

$243,321

$237,762

$225,954

$167,135

$157,171

$165,200

$178,895

$176,495

'

$874,172

$677,761

$686,234

Operating income:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

48,564

48,733

50,273

20,877

16,637

34,261

46,914

53,744

'

168,447

151,556

157,421

General and administrative expense

'

'

'

'

'

'

'

'

'

-68,025

-46,257

-31,567

Impairments and other charges

'

'

'

'

'

'

'

'

-170,000

0

0

-170,000

Provision for reduction in carrying value of certain assets

'

'

'

'

'

'

'

'

'

-2,544

0

-1,350

Gain on disposition of assets, net

'

'

'

'

'

'

'

'

'

3,994

1,974

3,659

Total operating income (loss)

28,516

35,589

28,587

9,180

-8,297

25,903

40,978

48,689

'

101,872

107,273

-41,837

Interest expense

'

'

'

'

'

'

'

'

'

-47,820

-33,542

-22,594

Interest income

'

'

'

'

'

'

'

'

'

2,450

153

256

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

'

-5,218

-2,130

0

Changes in fair value of derivative positions

'

'

'

'

'

'

'

'

'

53

55

-110

Other

'

'

'

'

'

'

'

'

'

1,450

-832

-1,127

Income (loss) before income taxes

'

'

'

'

'

'

'

'

'

52,787

70,977

-65,412

Identifiable assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total identifiable assets

'

'

'

'

'

'

'

'

'

1,254,982

1,078,238

'

Corporate and other assets

279,774

'

'

'

177,495

'

'

'

'

279,774

177,495

'

Total assets

1,534,756

'

'

'

1,255,733

'

'

'

'

1,534,756

1,255,733

'

Rental Tools [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

'

310,041

246,900

237,068

Operating income:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

91,164

113,899

120,822

Identifiable assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total identifiable assets

'

'

'

'

'

'

'

'

'

350,429

194,600

'

U.S. Barge Drilling [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

'

136,855

123,672

93,763

Operating income:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

51,257

39,608

11,115

Identifiable assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total identifiable assets

'

'

'

'

'

'

'

'

'

89,884

99,409

'

U.S. Drilling [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

'

66,928

1,387

0

Operating income:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

-4,484

-15,168

-3,915

Identifiable assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total identifiable assets

'

'

'

'

'

'

'

'

'

354,208

369,683

'

International Drilling [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

'

333,962

291,772

318,481

Operating income:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

23,732

13,138

22,948

Identifiable assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total identifiable assets

'

'

'

'

'

'

'

'

'

460,461

414,546

'

Technical Services [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

'

26,386

14,030

27,284

Operating income:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

2,050

79

5,680

Construction Contract [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

'

0

0

9,638

Operating income:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

$4,728

$0

$771

Reportable_Segments_Results_of1

Reportable Segments - Results of Operations by Reportable Segment (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'
Number of major customer	'	2	'
Exxon Neftegas Limited (ENL) [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Percent of total revenues	15.60%	12.00%	16.00%
Exxon Neftegas Limited (ENL) [Member] | International Drilling [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Percent of segment revenues	38.30%	27.00%	34.00%
Exxon Neftegas Limited (ENL) [Member] | Technical Services [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Percent of segment revenues	33.90%	'	'
Dowell Schlumberger [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Percent of total revenues	'	10.00%	'
Dowell Schlumberger [Member] | International Drilling [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Percent of segment revenues	'	24.00%	'

Reportable_Segments_Operations

Reportable Segments - Operations by Industry Segment (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Capital expenditures:	'	'	'
Total capital expenditures	$155,645	$191,543	$190,399
Depreciation and amortization:	'	'	'
Total depreciation and amortization	134,053	113,017	112,136
Rental Tools [Member]	'	'	'
Capital expenditures:	'	'	'
Total capital expenditures	76,928	61,958	61,702
Depreciation and amortization:	'	'	'
Total depreciation and amortization	54,625	42,944	40,497
U.S. Barge Drilling [Member]	'	'	'
Capital expenditures:	'	'	'
Total capital expenditures	23,694	8,808	7,339
Depreciation and amortization:	'	'	'
Total depreciation and amortization	13,796	13,906	17,006
U.S. Drilling [Member]	'	'	'
Capital expenditures:	'	'	'
Total capital expenditures	1,809	86,786	99,915
Depreciation and amortization:	'	'	'
Total depreciation and amortization	16,120	7,011	2,223
International Drilling [Member]	'	'	'
Capital expenditures:	'	'	'
Total capital expenditures	39,115	15,240	15,011
Depreciation and amortization:	'	'	'
Total depreciation and amortization	46,022	45,967	48,965
Corporate [Member]	'	'	'
Capital expenditures:	'	'	'
Total capital expenditures	14,099	18,751	6,432
Corporate and other [Member]	'	'	'
Depreciation and amortization:	'	'	'
Total depreciation and amortization	$3,490	$3,189	$3,445

Reportable_Segments_Results_of2

Reportable Segments - Results of Operations by Geographic Area (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

$243,321

$237,762

$225,954

$167,135

$157,171

$165,200

$178,895

$176,495

'

$874,172

$677,761

$686,234

Operating gross margin:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

48,564

48,733

50,273

20,877

16,637

34,261

46,914

53,744

'

168,447

151,556

157,421

General and administrative expense

'

'

'

'

'

'

'

'

'

-68,025

-46,257

-31,567

Impairments and other charges

'

'

'

'

'

'

'

'

-170,000

0

0

-170,000

Provision for reduction in carrying value of certain assets

'

'

'

'

'

'

'

'

'

-2,544

0

-1,350

Gain on disposition of assets, net

'

'

'

'

'

'

'

'

'

3,994

1,974

3,659

Total operating income (loss)

28,516

35,589

28,587

9,180

-8,297

25,903

40,978

48,689

'

101,872

107,273

-41,837

Interest expense

'

'

'

'

'

'

'

'

'

-47,820

-33,542

-22,594

Interest income

'

'

'

'

'

'

'

'

'

2,450

153

256

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

'

-5,218

-2,130

0

Changes in fair value of derivative positions

'

'

'

'

'

'

'

'

'

53

55

-110

Other

'

'

'

'

'

'

'

'

'

1,450

-832

-1,127

Income (loss) before income taxes

'

'

'

'

'

'

'

'

'

52,787

70,977

-65,412

Long-lived assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total long-lived assets

871,356

'

'

'

793,197

'

'

'

'

871,356

793,197

'

Africa and Middle East [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

58,416

26,528

6,774

Operating gross margin:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

-383

-2,027

-8,724

Long-lived assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total long-lived assets

110,336

'

'

'

25,032

'

'

'

'

110,336

25,032

'

Asia Pacific [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

170,165

117,392

147,643

Operating gross margin:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

21,995

16,550

23,528

Long-lived assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total long-lived assets

44,606

'

'

'

18,688

'

'

'

'

44,606

18,688

'

CIS [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

55,165

44,312

67,255

Operating gross margin:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

11,888

-9,580

8,709

Long-lived assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total long-lived assets

55,722

'

'

'

110,848

'

'

'

'

55,722

110,848

'

Europe [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

16,788

0

0

Operating gross margin:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

274

0

0

Long-lived assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total long-lived assets

82,473

'

'

'

0

'

'

'

'

82,473

0

'

Latin America [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

120,261

103,540

96,810

Operating gross margin:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

1,140

9,581

1,126

Long-lived assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total long-lived assets

15,198

'

'

'

63,899

'

'

'

'

15,198

63,899

'

United States [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Revenues:

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

453,377

385,989

367,752

Operating gross margin:

'

'

'

'

'

'

'

'

'

'

'

'

Total operating gross margin

'

'

'

'

'

'

'

'

'

133,533

137,032

132,782

Long-lived assets:

'

'

'

'

'

'

'

'

'

'

'

'

Total long-lived assets

$563,021

'

'

'

$574,730

'

'

'

'

$563,021

$574,730

'

Commitments_and_Contingencies_1

Commitments and Contingencies - Schedule of Future Minimum Lease Payments Under Operating Leases with Non Cancelable Terms (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]	'
2014	$13,979
2015	9,488
2016	7,592
2017	7,114
2018	5,944
Thereafter	7,988
Total	$52,105

Commitments_and_Contingencies_2

Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	LegalMatter
Commitment And Contingencies [Line Items]	'	'	'
Rent expense for operating leases	$19,900,000	$11,800,000	$12,100,000
Exposure per occurrence, employees compensation	250,000	'	'
Aggregate self insured exposure per employer's liability	500,000	'	'
Exposure per occurrence	500,000	'	'
Aggregate self insured exposure per occurrence, foreign employees compensation	100,000	'	'
Aggregate self insured exposure per employer's liability, foreign	1,000,000	'	'
Aggregate deductible for protection and indemnity and maritime employers' liability claims	500,000	'	'
Auto liability claims	100,000	'	'
Gross self insurance accruals	5,700,000	4,700,000	'
Related insurance recoveries	1,700,000	1,200,000	'
Number of lawsuits	15	'	'
Amount accrued	0	'	'
Fine paid by for retention and use of individual agent in Nigeria with respect to customs-related issues	$11,760,000	'	'
Minimum [Member]	'	'	'
Commitment And Contingencies [Line Items]	'	'	'
Employment agreements terms	'1 year	'	'
Maximum [Member]	'	'	'
Commitment And Contingencies [Line Items]	'	'	'
Employment agreements terms	'2 years	'	'

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Related Party Transaction [Line Items]	'	'	'
Consulting fees	'	'	$40,000
Related party expenses	36,000	36,000	36,000
Apache [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Revenue from affiliated	40,800,000	31,200,000	'
GD [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Revenue from affiliated	200,000	'	'
Ranch Lease Agreement [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Number of ranch lease agreements	2	'	'
Ranch Lease Agreement [Member] | Cypress Springs Ranch [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Fees pursuant to the ranch lease agreements for right to utilize premises of ranches	14,281	39,875	'
Ranch Lease Agreement [Member] | Camp Verde Ranch [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Fees pursuant to the ranch lease agreements for right to utilize premises of ranches	'	$1,650	'

Supplementary_Information_Addi

Supplementary Information - Additional Information (Detail) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Supplemental Financial Information [Line Items]	'	'
Deferred mobilization fees	$8.10	$1.60
Accrued interest expense	16.8	9.7
Worker's compensation liabilities	2.7	2.3
Accrued payroll and payroll taxes	33.5	26
Other Long Term Obligations [Member]	'	'
Supplemental Financial Information [Line Items]	'	'
Worker's compensation liabilities	$3	$2.50

Parent_Guarantor_NonGuarantor_2

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Percentage of guaranteed subsidiaries by the parent companies	100.00%

Parent_Guarantor_NonGuarantor_3

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Statement of Operations (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Condensed Financial Statements [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

$243,321

$237,762

$225,954

$167,135

$157,171

$165,200

$178,895

$176,495

'

$874,172

$677,761

$686,234

Operating expenses

'

'

'

'

'

'

'

'

'

571,672

413,188

416,677

Depreciation and amortization

'

'

'

'

'

'

'

'

'

134,053

113,017

112,136

Total operating gross margin

48,564

48,733

50,273

20,877

16,637

34,261

46,914

53,744

'

168,447

151,556

157,421

General and administration expense

'

'

'

'

'

'

'

'

'

-68,025

-46,257

-31,567

Impairments and other charges

'

'

'

'

'

'

'

'

-170,000

0

0

-170,000

Provision for reduction in carrying value of certain assets

'

'

'

'

'

'

'

'

'

-2,544

0

-1,350

Gain on disposition of assets, net

'

'

'

'

'

'

'

'

'

3,994

1,974

3,659

Total operating income (loss)

28,516

35,589

28,587

9,180

-8,297

25,903

40,978

48,689

'

101,872

107,273

-41,837

Other income and (expense):

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

'

-47,820

-33,542

-22,594

Interest income

'

'

'

'

'

'

'

'

'

2,450

153

256

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

'

-5,218

-2,130

0

Changes in fair value of derivative positions

'

'

'

'

'

'

'

'

'

53

55

-110

Other

'

'

'

'

'

'

'

'

'

1,450

-832

-1,127

Equity in net earnings of subsidiaries

'

'

'

'

'

'

'

'

'

0

0

0

Total other expense

'

'

'

'

'

'

'

'

'

-49,085

-36,296

-23,575

Income (loss) before income taxes

'

'

'

'

'

'

'

'

'

52,787

70,977

-65,412

Income tax expense (benefit):

'

'

'

'

'

'

'

'

'

'

'

'

Current

'

'

'

'

'

'

'

'

'

12,909

18,042

33,608

Deferred

'

'

'

'

'

'

'

'

'

12,699

15,837

-48,375

Total income tax expense (benefit)

'

'

'

'

'

'

'

'

'

25,608

33,879

-14,767

Net income (loss)

'

'

'

'

'

'

'

'

'

27,179

37,098

-50,645

Less: Net (loss) attributable to noncontrolling interest

'

'

'

'

'

'

'

'

'

164

-215

-194

Net income (loss) attributable to controlling interest

10,172

7,970

8,281

592

-20,098

10,936

20,083

26,392

'

27,015

37,313

-50,451

Parent [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

0

0

0

Operating expenses

'

'

'

'

'

'

'

'

'

0

0

0

Depreciation and amortization

'

'

'

'

'

'

'

'

'

0

0

0

Total operating gross margin

'

'

'

'

'

'

'

'

'

0

0

0

General and administration expense

'

'

'

'

'

'

'

'

'

-202

-182

-218

Impairments and other charges

'

'

'

'

'

'

'

'

'

'

'

0

Provision for reduction in carrying value of certain assets

'

'

'

'

'

'

'

'

'

0

'

0

Gain on disposition of assets, net

'

'

'

'

'

'

'

'

'

0

0

0

Total operating income (loss)

'

'

'

'

'

'

'

'

'

-202

-182

-218

Other income and (expense):

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

'

-51,439

-37,326

-26,654

Interest income

'

'

'

'

'

'

'

'

'

3,824

9,863

18,131

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

'

-5,218

-2,130

0

Changes in fair value of derivative positions

'

'

'

'

'

'

'

'

'

53

55

-110

Other

'

'

'

'

'

'

'

'

'

-1

0

0

Equity in net earnings of subsidiaries

'

'

'

'

'

'

'

'

'

55,430

43,884

-23,484

Total other expense

'

'

'

'

'

'

'

'

'

2,649

14,346

-32,117

Income (loss) before income taxes

'

'

'

'

'

'

'

'

'

2,447

14,164

-32,335

Income tax expense (benefit):

'

'

'

'

'

'

'

'

'

'

'

'

Current

'

'

'

'

'

'

'

'

'

-21,431

-25,406

-13,402

Deferred

'

'

'

'

'

'

'

'

'

-3,137

2,257

31,518

Total income tax expense (benefit)

'

'

'

'

'

'

'

'

'

-24,568

-23,149

18,116

Net income (loss)

'

'

'

'

'

'

'

'

'

27,015

37,313

-50,451

Less: Net (loss) attributable to noncontrolling interest

'

'

'

'

'

'

'

'

'

0

0

0

Net income (loss) attributable to controlling interest

'

'

'

'

'

'

'

'

'

27,015

37,313

-50,451

Guarantor [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

468,073

393,738

375,798

Operating expenses

'

'

'

'

'

'

'

'

'

252,211

184,946

174,955

Depreciation and amortization

'

'

'

'

'

'

'

'

'

77,416

65,354

62,744

Total operating gross margin

'

'

'

'

'

'

'

'

'

138,446

143,438

138,099

General and administration expense

'

'

'

'

'

'

'

'

'

-67,083

-45,758

-30,968

Impairments and other charges

'

'

'

'

'

'

'

'

'

'

'

-170,000

Provision for reduction in carrying value of certain assets

'

'

'

'

'

'

'

'

'

0

'

-1,350

Gain on disposition of assets, net

'

'

'

'

'

'

'

'

'

1,759

775

2,706

Total operating income (loss)

'

'

'

'

'

'

'

'

'

73,122

98,455

-61,513

Other income and (expense):

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

'

-335

-151

-17,889

Interest income

'

'

'

'

'

'

'

'

'

1,761

5,073

750

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

'

0

0

0

Changes in fair value of derivative positions

'

'

'

'

'

'

'

'

'

0

0

0

Other

'

'

'

'

'

'

'

'

'

-143

-206

-315

Equity in net earnings of subsidiaries

'

'

'

'

'

'

'

'

'

0

0

0

Total other expense

'

'

'

'

'

'

'

'

'

1,283

4,716

-17,454

Income (loss) before income taxes

'

'

'

'

'

'

'

'

'

74,405

103,171

-78,967

Income tax expense (benefit):

'

'

'

'

'

'

'

'

'

'

'

'

Current

'

'

'

'

'

'

'

'

'

18,737

32,781

27,169

Deferred

'

'

'

'

'

'

'

'

'

19,454

15,429

-57,030

Total income tax expense (benefit)

'

'

'

'

'

'

'

'

'

38,191

48,210

-29,861

Net income (loss)

'

'

'

'

'

'

'

'

'

36,214

54,961

-49,106

Less: Net (loss) attributable to noncontrolling interest

'

'

'

'

'

'

'

'

'

0

0

0

Net income (loss) attributable to controlling interest

'

'

'

'

'

'

'

'

'

36,214

54,961

-49,106

Non-Guarantor [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

549,295

385,279

426,491

Operating expenses

'

'

'

'

'

'

'

'

'

462,657

329,498

357,777

Depreciation and amortization

'

'

'

'

'

'

'

'

'

56,637

47,663

49,392

Total operating gross margin

'

'

'

'

'

'

'

'

'

30,001

8,118

19,322

General and administration expense

'

'

'

'

'

'

'

'

'

-740

-317

-381

Impairments and other charges

'

'

'

'

'

'

'

'

'

'

'

0

Provision for reduction in carrying value of certain assets

'

'

'

'

'

'

'

'

'

-2,544

'

0

Gain on disposition of assets, net

'

'

'

'

'

'

'

'

'

2,235

1,199

953

Total operating income (loss)

'

'

'

'

'

'

'

'

'

28,952

9,000

19,894

Other income and (expense):

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

'

-9,930

-8,739

-8,865

Interest income

'

'

'

'

'

'

'

'

'

10,749

41,999

12,189

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

'

0

0

0

Changes in fair value of derivative positions

'

'

'

'

'

'

'

'

'

0

0

0

Other

'

'

'

'

'

'

'

'

'

1,594

-626

-812

Equity in net earnings of subsidiaries

'

'

'

'

'

'

'

'

'

0

0

0

Total other expense

'

'

'

'

'

'

'

'

'

2,413

32,634

2,512

Income (loss) before income taxes

'

'

'

'

'

'

'

'

'

31,365

41,634

22,406

Income tax expense (benefit):

'

'

'

'

'

'

'

'

'

'

'

'

Current

'

'

'

'

'

'

'

'

'

15,603

10,667

19,841

Deferred

'

'

'

'

'

'

'

'

'

-3,618

-1,849

-22,863

Total income tax expense (benefit)

'

'

'

'

'

'

'

'

'

11,985

8,818

-3,022

Net income (loss)

'

'

'

'

'

'

'

'

'

19,380

32,816

25,428

Less: Net (loss) attributable to noncontrolling interest

'

'

'

'

'

'

'

'

'

164

-215

-194

Net income (loss) attributable to controlling interest

'

'

'

'

'

'

'

'

'

19,216

33,031

25,622

Eliminations [Member]

'

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

'

-143,196

-101,256

-116,055

Operating expenses

'

'

'

'

'

'

'

'

'

-143,196

-101,256

-116,055

Depreciation and amortization

'

'

'

'

'

'

'

'

'

0

0

0

Total operating gross margin

'

'

'

'

'

'

'

'

'

0

0

0

General and administration expense

'

'

'

'

'

'

'

'

'

0

0

0

Impairments and other charges

'

'

'

'

'

'

'

'

'

'

'

0

Provision for reduction in carrying value of certain assets

'

'

'

'

'

'

'

'

'

0

'

0

Gain on disposition of assets, net

'

'

'

'

'

'

'

'

'

0

0

0

Total operating income (loss)

'

'

'

'

'

'

'

'

'

0

0

0

Other income and (expense):

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

'

13,884

12,674

30,814

Interest income

'

'

'

'

'

'

'

'

'

-13,884

-56,782

-30,814

Loss on extinguishment of debt

'

'

'

'

'

'

'

'

'

0

0

0

Changes in fair value of derivative positions

'

'

'

'

'

'

'

'

'

0

0

0

Other

'

'

'

'

'

'

'

'

'

0

0

0

Equity in net earnings of subsidiaries

'

'

'

'

'

'

'

'

'

-55,430

-43,884

23,484

Total other expense

'

'

'

'

'

'

'

'

'

-55,430

-87,992

23,484

Income (loss) before income taxes

'

'

'

'

'

'

'

'

'

-55,430

-87,992

23,484

Income tax expense (benefit):

'

'

'

'

'

'

'

'

'

'

'

'

Current

'

'

'

'

'

'

'

'

'

0

0

0

Deferred

'

'

'

'

'

'

'

'

'

0

0

0

Total income tax expense (benefit)

'

'

'

'

'

'

'

'

'

0

0

0

Net income (loss)

'

'

'

'

'

'

'

'

'

-55,430

-87,992

23,484

Less: Net (loss) attributable to noncontrolling interest

'

'

'

'

'

'

'

'

'

0

0

0

Net income (loss) attributable to controlling interest

'

'

'

'

'

'

'

'

'

($55,430)

($87,992)

$23,484

Parent_Guarantor_NonGuarantor_4

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidating Condensed Balance Sheet (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current assets:	'	'	'	'
Cash and cash equivalents	$148,689,000	$87,886,000	$97,869,000	$51,431,000
Accounts and notes receivable, net	257,889,000	168,615,000	'	'
Rig materials and supplies	41,781,000	29,422,000	'	'
Deferred costs	13,682,000	1,089,000	'	'
Deferred income taxes	9,940,000	8,742,000	'	'
Other tax assets	24,079,000	33,524,000	'	'
Other current assets	23,223,000	12,853,000	'	'
Total current assets	519,283,000	342,131,000	'	'
Property, plant and equipment, net	871,356,000	793,197,000	'	'
Investment in subsidiaries and intercompany advances	0	0	'	'
Other noncurrent assets	144,117,000	120,405,000	'	'
Total assets	1,534,756,000	1,255,733,000	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	25,000,000	10,000,000	'	'
Accounts payable and accrued liabilities	174,886,000	137,746,000	'	'
Accrued income taxes	7,266,000	4,120,000	'	'
Total current liabilities	207,152,000	151,866,000	'	'
Long-term debt	628,781,000	469,205,000	'	'
Other long-term liabilities	26,914,000	23,182,000	'	'
Long-term deferred tax liability	38,767,000	20,847,000	'	'
Intercompany payables	0	0	'	'
Contingencies	0	0	'	'
Stockholders' equity:	'	'	'	'
Common stock	20,075,000	19,818,000	'	'
Capital in excess of par value	657,349,000	646,217,000	'	'
Accumulated other comprehensive income	1,888,000	0	'	'
Retained earnings (accumulated deficit)	-47,616,000	-74,631,000	'	'
Total controlling interest stockholders' equity	631,696,000	591,404,000	'	'
Noncontrolling interest	1,446,000	-771,000	'	'
Total Equity	633,142,000	590,633,000	544,050,000	588,066,000
Total liabilities and stockholders' equity	1,534,756,000	1,255,733,000	'	'
Parent [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	88,697,000	42,251,000	55,670,000	13,835,000
Accounts and notes receivable, net	0	-7,000	'	'
Rig materials and supplies	0	0	'	'
Deferred costs	0	0	'	'
Deferred income taxes	-57,000	0	'	'
Other tax assets	54,524,000	46,249,000	'	'
Other current assets	0	0	'	'
Total current assets	143,164,000	88,493,000	'	'
Property, plant and equipment, net	60,000	60,000	'	'
Investment in subsidiaries and intercompany advances	1,906,128,000	1,492,708,000	'	'
Other noncurrent assets	-457,954,000	-378,297,000	'	'
Total assets	1,591,398,000	1,202,964,000	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	25,000,000	10,000,000	'	'
Accounts payable and accrued liabilities	75,268,000	65,839,000	'	'
Accrued income taxes	0	0	'	'
Total current liabilities	100,268,000	75,839,000	'	'
Long-term debt	628,781,000	469,205,000	'	'
Other long-term liabilities	5,037,000	3,933,000	'	'
Long-term deferred tax liability	0	0	'	'
Intercompany payables	227,504,000	62,583,000	'	'
Contingencies	0	0	'	'
Stockholders' equity:	'	'	'	'
Common stock	20,075,000	19,818,000	'	'
Capital in excess of par value	657,349,000	646,217,000	'	'
Accumulated other comprehensive income	0	'	'	'
Retained earnings (accumulated deficit)	-47,616,000	-74,631,000	'	'
Total controlling interest stockholders' equity	629,808,000	591,404,000	'	'
Noncontrolling interest	0	0	'	'
Total Equity	629,808,000	591,404,000	'	'
Total liabilities and stockholders' equity	1,591,398,000	1,202,964,000	'	'
Guarantor [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	8,310,000	11,023,000	4,212,000	2,317,000
Accounts and notes receivable, net	101,299,000	77,927,000	'	'
Rig materials and supplies	3,002,000	2,835,000	'	'
Deferred costs	0	0	'	'
Deferred income taxes	8,435,000	7,615,000	'	'
Other tax assets	-46,770,000	-31,136,000	'	'
Other current assets	9,089,000	8,708,000	'	'
Total current assets	83,365,000	76,972,000	'	'
Property, plant and equipment, net	562,148,000	548,794,000	'	'
Investment in subsidiaries and intercompany advances	-336,570,000	-523,143,000	'	'
Other noncurrent assets	468,864,000	370,877,000	'	'
Total assets	777,807,000	473,500,000	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	0	0	'	'
Accounts payable and accrued liabilities	92,546,000	94,037,000	'	'
Accrued income taxes	725,000	612,000	'	'
Total current liabilities	93,271,000	94,649,000	'	'
Long-term debt	0	0	'	'
Other long-term liabilities	6,743,000	6,129,000	'	'
Long-term deferred tax liability	51,747,000	36,894,000	'	'
Intercompany payables	291,783,000	43,657,000	'	'
Contingencies	0	0	'	'
Stockholders' equity:	'	'	'	'
Common stock	18,049,000	18,049,000	'	'
Capital in excess of par value	740,438,000	733,112,000	'	'
Accumulated other comprehensive income	0	'	'	'
Retained earnings (accumulated deficit)	-424,224,000	-458,990,000	'	'
Total controlling interest stockholders' equity	334,263,000	292,171,000	'	'
Noncontrolling interest	0	0	'	'
Total Equity	334,263,000	292,171,000	'	'
Total liabilities and stockholders' equity	777,807,000	473,500,000	'	'
Non-Guarantor [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	51,682,000	34,612,000	37,987,000	35,279,000
Accounts and notes receivable, net	156,590,000	90,695,000	'	'
Rig materials and supplies	38,779,000	26,587,000	'	'
Deferred costs	13,682,000	1,089,000	'	'
Deferred income taxes	1,562,000	1,127,000	'	'
Other tax assets	16,325,000	18,411,000	'	'
Other current assets	14,134,000	4,145,000	'	'
Total current assets	292,754,000	176,666,000	'	'
Property, plant and equipment, net	309,148,000	244,343,000	'	'
Investment in subsidiaries and intercompany advances	1,667,937,000	1,467,617,000	'	'
Other noncurrent assets	250,983,000	219,196,000	'	'
Total assets	2,520,822,000	2,107,822,000	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	0	0	'	'
Accounts payable and accrued liabilities	261,436,000	205,864,000	'	'
Accrued income taxes	6,541,000	3,508,000	'	'
Total current liabilities	267,977,000	209,372,000	'	'
Long-term debt	0	0	'	'
Other long-term liabilities	15,134,000	13,120,000	'	'
Long-term deferred tax liability	-12,980,000	-16,047,000	'	'
Intercompany payables	422,645,000	216,369,000	'	'
Contingencies	0	0	'	'
Stockholders' equity:	'	'	'	'
Common stock	43,003,000	43,003,000	'	'
Capital in excess of par value	1,572,919,000	1,455,246,000	'	'
Accumulated other comprehensive income	1,888,000	'	'	'
Retained earnings (accumulated deficit)	208,790,000	187,530,000	'	'
Total controlling interest stockholders' equity	1,826,600,000	1,685,779,000	'	'
Noncontrolling interest	1,446,000	-771,000	'	'
Total Equity	1,828,046,000	1,685,008,000	'	'
Total liabilities and stockholders' equity	2,520,822,000	2,107,822,000	'	'
Eliminations [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Accounts and notes receivable, net	0	0	'	'
Rig materials and supplies	0	0	'	'
Deferred costs	0	0	'	'
Deferred income taxes	0	0	'	'
Other tax assets	0	0	'	'
Other current assets	0	0	'	'
Total current assets	0	0	'	'
Property, plant and equipment, net	0	0	'	'
Investment in subsidiaries and intercompany advances	-3,237,495,000	-2,437,182,000	'	'
Other noncurrent assets	-117,776,000	-91,371,000	'	'
Total assets	-3,355,271,000	-2,528,553,000	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	0	0	'	'
Accounts payable and accrued liabilities	-254,364,000	-227,994,000	'	'
Accrued income taxes	0	0	'	'
Total current liabilities	-254,364,000	-227,994,000	'	'
Long-term debt	0	0	'	'
Other long-term liabilities	0	0	'	'
Long-term deferred tax liability	0	0	'	'
Intercompany payables	-941,932,000	-322,609,000	'	'
Contingencies	0	0	'	'
Stockholders' equity:	'	'	'	'
Common stock	-61,052,000	-61,052,000	'	'
Capital in excess of par value	-2,313,357,000	-2,188,358,000	'	'
Accumulated other comprehensive income	0	'	'	'
Retained earnings (accumulated deficit)	215,434,000	271,460,000	'	'
Total controlling interest stockholders' equity	-2,158,975,000	-1,977,950,000	'	'
Noncontrolling interest	0	0	'	'
Total Equity	-2,158,975,000	-1,977,950,000	'	'
Total liabilities and stockholders' equity	($3,355,271,000)	($2,528,553,000)	'	'

Parent_Guarantor_NonGuarantor_5

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Statement of Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Condensed Statement of Comprehensive Income [Line Items]	'	'	'
Net income	$27,179	$37,098	($50,645)
Currency translation difference on related borrowings	-1,525	0	0
Currency translation difference on foreign currency net investments	3,051	0	0
Total other comprehensive gain, net of tax:	1,526	0	0
Comprehensive income	28,705	37,098	-50,645
Comprehensive (income) loss attributable to noncontrolling interest	198	215	194
Comprehensive income (loss) attributable to controlling interest	28,903	37,313	-50,451
Parent [Member]	'	'	'
Schedule of Condensed Statement of Comprehensive Income [Line Items]	'	'	'
Net income	27,015	37,313	-50,451
Currency translation difference on related borrowings	0	0	0
Currency translation difference on foreign currency net investments	0	0	0
Total other comprehensive gain, net of tax:	0	0	0
Comprehensive income	27,015	37,313	-50,451
Comprehensive (income) loss attributable to noncontrolling interest	0	0	0
Comprehensive income (loss) attributable to controlling interest	27,015	37,313	-50,451
Guarantor [Member]	'	'	'
Schedule of Condensed Statement of Comprehensive Income [Line Items]	'	'	'
Net income	36,214	54,961	-49,106
Currency translation difference on related borrowings	0	0	0
Currency translation difference on foreign currency net investments	0	0	0
Total other comprehensive gain, net of tax:	0	0	0
Comprehensive income	36,214	54,961	-49,106
Comprehensive (income) loss attributable to noncontrolling interest	0	0	0
Comprehensive income (loss) attributable to controlling interest	36,214	54,961	-49,106
Non-Guarantor [Member]	'	'	'
Schedule of Condensed Statement of Comprehensive Income [Line Items]	'	'	'
Net income	19,380	32,816	25,428
Currency translation difference on related borrowings	-1,525	0	0
Currency translation difference on foreign currency net investments	3,051	0	0
Total other comprehensive gain, net of tax:	1,526	0	0
Comprehensive income	20,906	32,816	25,428
Comprehensive (income) loss attributable to noncontrolling interest	198	215	194
Comprehensive income (loss) attributable to controlling interest	21,104	33,031	25,622
Eliminations [Member]	'	'	'
Schedule of Condensed Statement of Comprehensive Income [Line Items]	'	'	'
Net income	-55,430	-87,992	23,484
Currency translation difference on related borrowings	0	0	0
Currency translation difference on foreign currency net investments	0	0	0
Total other comprehensive gain, net of tax:	0	0	0
Comprehensive income	-55,430	-87,992	23,484
Comprehensive (income) loss attributable to noncontrolling interest	0	0	0
Comprehensive income (loss) attributable to controlling interest	($55,430)	($87,992)	$23,484

Parent_Guarantor_NonGuarantor_6

Parent, Guarantor, Non-Guarantor Unaudited Consolidating Condensed Financial Statements - Consolidated Condensed Statements of Cash Flows (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
Net income (loss)	$27,179	$37,098	($50,645)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	134,053	113,017	112,136
Loss on extinguishment of debt	5,218	2,130	0
Gain on disposition of assets	-3,994	-1,974	-3,659
Deferred income tax expense	12,699	15,837	-48,375
Impairments and other charges	0	0	170,000
Provision for reduction in carrying value of certain assets	2,544	0	1,350
Expenses not requiring cash	17,764	22,600	12,833
Equity in net earnings of subsidiaries	0	0	0
Change in accounts receivable	-33,512	15,241	-6,841
Change in other assets	-10,622	-5,491	61,853
Change in accrued income taxes	10,454	-6,102	2,141
Change in liabilities	-286	-2,657	-24,908
Net cash provided by operating activities	161,497	189,699	225,885
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'	'
Capital expenditures	-155,645	-191,543	-190,399
Proceeds from the sale of assets	8,218	3,937	5,535
Acquisition of ITS, net of cash acquired	-117,991	0	0
Proceeds from insurance settlements	0	0	250
Intercompany dividend payment	0	0	0
Net cash used in investing activities	-265,418	-187,606	-184,614
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from debt issuance	350,000	130,000	50,000
Proceeds from draw on revolver credit facility	0	7,000	0
Repayments of long-term debt	-125,000	0	0
Repayments of senior notes	0	-125,000	0
Paydown on term note	-50,000	-18,000	-21,000
Paydown on revolver credit facility	0	0	-25,000
Payment of debt issuance costs	-11,172	-4,859	-504
Payment of debt extinguishment costs	0	-555	0
Proceeds from stock options exercised	0	0	183
Excess tax benefit from stock-based compensation	896	-662	1,488
Intercompany advances, net	0	0	0
Net cash provided by (used in) financing activities	164,724	-12,076	5,167
Net change in cash and cash equivalents	60,803	-9,983	46,438
Cash and cash equivalents at beginning of year	87,886	97,869	51,431
Cash and cash equivalents at end of year	148,689	87,886	97,869
Parent [Member]	'	'	'
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
Net income (loss)	27,015	37,313	-50,451
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	0	0	0
Loss on extinguishment of debt	5,218	2,130	0
Gain on disposition of assets	0	0	0
Deferred income tax expense	-3,137	2,257	31,518
Impairments and other charges	'	'	0
Provision for reduction in carrying value of certain assets	0	'	0
Expenses not requiring cash	13,173	16,558	16,411
Equity in net earnings of subsidiaries	-55,430	-43,884	23,484
Change in accounts receivable	-7	-445	-288,333
Change in other assets	74,411	1,649	62,173
Change in accrued income taxes	6,617	-4,055	-12,852
Change in liabilities	6,934	3,914	2,398
Net cash provided by operating activities	74,794	15,437	-215,652
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'	'
Capital expenditures	0	0	0
Proceeds from the sale of assets	0	0	0
Acquisition of ITS, net of cash acquired	0	'	'
Proceeds from insurance settlements	'	'	0
Intercompany dividend payment	0	-8,387	0
Net cash used in investing activities	0	-8,387	0
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from debt issuance	350,000	130,000	50,000
Proceeds from draw on revolver credit facility	0	7,000	'
Repayments of long-term debt	-125,000	'	'
Repayments of senior notes	'	-125,000	'
Paydown on term note	-50,000	-18,000	-21,000
Paydown on revolver credit facility	0	0	-25,000
Payment of debt issuance costs	-11,172	-4,859	-504
Payment of debt extinguishment costs	0	-555	0
Proceeds from stock options exercised	'	'	183
Excess tax benefit from stock-based compensation	896	-662	1,488
Intercompany advances, net	-193,072	-8,393	252,320
Net cash provided by (used in) financing activities	-28,348	-20,469	257,487
Net change in cash and cash equivalents	46,446	-13,419	41,835
Cash and cash equivalents at beginning of year	42,251	55,670	13,835
Cash and cash equivalents at end of year	88,697	42,251	55,670
Guarantor [Member]	'	'	'
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
Net income (loss)	36,214	54,961	-49,106
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	77,416	65,354	62,744
Loss on extinguishment of debt	0	0	0
Gain on disposition of assets	-1,759	-775	-2,706
Deferred income tax expense	19,454	15,429	-57,030
Impairments and other charges	'	'	170,000
Provision for reduction in carrying value of certain assets	0	'	1,350
Expenses not requiring cash	12	33,644	376
Equity in net earnings of subsidiaries	0	0	0
Change in accounts receivable	-12,888	-1,788	347,344
Change in other assets	-85,520	2,060	-16,724
Change in accrued income taxes	-1,052	220	-2,053
Change in liabilities	-877	-4,158	-51,351
Net cash provided by operating activities	31,000	164,947	402,844
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'	'
Capital expenditures	-94,269	-176,333	-174,999
Proceeds from the sale of assets	3,725	2,062	4,335
Acquisition of ITS, net of cash acquired	-6,903	'	'
Proceeds from insurance settlements	'	'	250
Intercompany dividend payment	0	-4,357	0
Net cash used in investing activities	-97,447	-178,628	-170,414
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from debt issuance	0	0	0
Proceeds from draw on revolver credit facility	0	0	'
Repayments of long-term debt	0	'	'
Repayments of senior notes	'	0	'
Paydown on term note	0	0	0
Paydown on revolver credit facility	0	0	0
Payment of debt issuance costs	0	0	0
Payment of debt extinguishment costs	0	0	0
Proceeds from stock options exercised	'	'	0
Excess tax benefit from stock-based compensation	0	0	0
Intercompany advances, net	63,734	20,492	-230,535
Net cash provided by (used in) financing activities	63,734	20,492	-230,535
Net change in cash and cash equivalents	-2,713	6,811	1,895
Cash and cash equivalents at beginning of year	11,023	4,212	2,317
Cash and cash equivalents at end of year	8,310	11,023	4,212
Non-Guarantor [Member]	'	'	'
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
Net income (loss)	19,380	32,816	25,428
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	56,637	47,663	49,392
Loss on extinguishment of debt	0	0	0
Gain on disposition of assets	-2,235	-1,199	-953
Deferred income tax expense	-3,618	-1,849	-22,863
Impairments and other charges	'	'	0
Provision for reduction in carrying value of certain assets	2,544	'	0
Expenses not requiring cash	4,579	-27,602	-3,954
Equity in net earnings of subsidiaries	0	0	0
Change in accounts receivable	-20,617	17,474	-65,852
Change in other assets	487	-9,200	16,404
Change in accrued income taxes	4,889	-2,267	17,046
Change in liabilities	-6,343	-2,413	24,045
Net cash provided by operating activities	55,703	53,423	38,693
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'	'
Capital expenditures	-61,376	-15,210	-15,400
Proceeds from the sale of assets	4,493	1,875	1,200
Acquisition of ITS, net of cash acquired	-111,088	'	'
Proceeds from insurance settlements	'	'	0
Intercompany dividend payment	0	-31,364	0
Net cash used in investing activities	-167,971	-44,699	-14,200
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from debt issuance	0	0	0
Proceeds from draw on revolver credit facility	0	0	'
Repayments of long-term debt	0	'	'
Repayments of senior notes	'	0	'
Paydown on term note	0	0	0
Paydown on revolver credit facility	0	0	0
Payment of debt issuance costs	0	0	0
Payment of debt extinguishment costs	0	0	0
Proceeds from stock options exercised	'	'	0
Excess tax benefit from stock-based compensation	0	0	0
Intercompany advances, net	129,338	-12,099	-21,785
Net cash provided by (used in) financing activities	129,338	-12,099	-21,785
Net change in cash and cash equivalents	17,070	-3,375	2,708
Cash and cash equivalents at beginning of year	34,612	37,987	35,279
Cash and cash equivalents at end of year	51,682	34,612	37,987
Eliminations [Member]	'	'	'
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
Net income (loss)	-55,430	-87,992	23,484
Adjustments to reconcile net income (loss) to net cash provided by operating activities:	'	'	'
Depreciation and amortization	0	0	0
Loss on extinguishment of debt	0	0	0
Gain on disposition of assets	0	0	0
Deferred income tax expense	0	0	0
Impairments and other charges	'	'	0
Provision for reduction in carrying value of certain assets	0	'	0
Expenses not requiring cash	0	0	0
Equity in net earnings of subsidiaries	55,430	43,884	-23,484
Change in accounts receivable	0	0	0
Change in other assets	0	0	0
Change in accrued income taxes	0	0	0
Change in liabilities	0	0	0
Net cash provided by operating activities	0	-44,108	0
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'	'
Capital expenditures	0	0	0
Proceeds from the sale of assets	0	0	0
Acquisition of ITS, net of cash acquired	0	'	'
Proceeds from insurance settlements	'	'	0
Intercompany dividend payment	0	44,108	0
Net cash used in investing activities	0	44,108	0
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from debt issuance	0	0	0
Proceeds from draw on revolver credit facility	0	0	'
Repayments of long-term debt	0	'	'
Repayments of senior notes	'	0	'
Paydown on term note	0	0	0
Paydown on revolver credit facility	0	0	0
Payment of debt issuance costs	0	0	0
Payment of debt extinguishment costs	0	0	0
Proceeds from stock options exercised	'	'	0
Excess tax benefit from stock-based compensation	0	0	0
Intercompany advances, net	0	0	0
Net cash provided by (used in) financing activities	0	0	0
Net change in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	$0	$0	$0

Selected_Quarterly_Financial_D2

Selected Quarterly Financial Data - Schedule of Selected Quarterly Financial Data (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Revenues	$243,321	$237,762	$225,954	$167,135	$157,171	$165,200	$178,895	$176,495	$874,172	$677,761	$686,234
Operating gross margin	48,564	48,733	50,273	20,877	16,637	34,261	46,914	53,744	168,447	151,556	157,421
Operating income	28,516	35,589	28,587	9,180	-8,297	25,903	40,978	48,689	101,872	107,273	-41,837
Net income (loss) attributable to controlling interest	$10,172	$7,970	$8,281	$592	($20,098)	$10,936	$20,083	$26,392	$27,015	$37,313	($50,451)
Basic earnings per share - net income (loss)	$0.08	$0.07	$0.07	$0	($0.17)	$0.09	$0.17	$0.23	$0.23	$0.32	($0.43)
Diluted earnings per share - net income (loss)	$0.08	$0.07	$0.07	$0	($0.17)	$0.09	$0.17	$0.22	$0.22	$0.31	($0.43)

Subsequent_Events_Details

Subsequent Events (Details) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jul. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Apr. 25, 2012

Dec. 31, 2013

Mar. 22, 2010

Jan. 22, 2014

Jan. 22, 2014

Jan. 22, 2014

Jan. 22, 2014

Jan. 07, 2014

Jan. 22, 2014

Jan. 22, 2014

Jan. 22, 2014

Term Loan [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

9.125% Senior Notes, due April 2018 (Issued March 22, 2010) [Member]

9.125% Senior Notes, due April 2018 (Issued March 22, 2010) [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

Subsequent Event [Member]

6.75 Percent Senior Notes, due July 15, 2022 [Member]

Term Loan [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

9.125% Senior Notes, due April 2018 (Issued April 25, 2012) [Member]

Tendered Bonds [Member]

7.50 % Senior Notes [Member]

7.50 % Senior Notes [Member]

Prior to August1, 2016 [Member]

On and after August 1, 2016 [Member]

Subsequent Event [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate principal amount

'

'

'

'

'

'

$125,000,000

'

$300,000,000

'

$360,000,000

'

'

'

$416,200,000

'

'

Debt instrument fixed interest rate

'

'

'

'

9.13%

9.13%

'

'

9.13%

'

6.75%

'

9.13%

9.13%

'

'

'

Revolving loan outstanding

'

'

'

'

'

'

'

'

'

40,000,000

'

'

'

'

'

'

'

Repayments of long-term debt

125,000,000

0

0

45,000,000

'

'

'

'

'

'

'

'

416,200,000

'

'

'

'

Tender offer price for each 1000 principal amount

'

'

'

'

'

'

'

'

'

'

1,061.98

'

'

1,061.98

'

'

'

Tender offer price per note, consent payment

'

'

'

'

'

'

'

'

'

'

30

'

'

30

'

'

'

Unit for which the tender offer price is calculated

'

'

'

'

'

'

'

'

'

'

1,000

'

'

'

'

'

'

Payments of debt issuance costs

11,172,000

4,859,000

504,000

'

'

'

'

'

'

'

'

'

'

'

453,700,000

'

'

Tender offer costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,800,000

'

'

Accrued interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11,700,000

'

'

Notes paid off

'

'

'

'

'

'

'

'

'

'

'

'

8,800,000

'

'

'

'

Percentage of redemption price after notice

'

'

'

'

'

'

'

104.56%

'

'

'

'

'

'

'

'

'

Debt issuance costs

'

'

'

'

'

'

'

'

'

'

7,100,000

'

'

'

'

'

'

Periodic payment, quarterly

'

'

'

'

'

'

'

'

'

'

'

$2,500,000

'

'

'

'

'

Percentage of the aggregate principal amount redeemed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35.00%

'

Percentage of redemption price before notice

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

106.75%

10337.50%

Percentage of repurchase

'

'

'

'

'

'

'

101.00%

'

'

'

'

'

'

'

'

10100.00%

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts and notes [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at beginning of year	$8,117	$1,544	$7,020
Charged to cost and expenses	5,092	4,264	2,258
Charged to other accounts	5,861	3,195	-2,034
Deductions	6,217	886	5,700
Balance at end of year	12,853	8,117	1,544
Allowance for obsolete rig materials and supplies [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at beginning of year	312	316	309
Charged to cost and expenses	0	0	26
Charged to other accounts	3,586	0	0
Deductions	453	4	19
Balance at end of year	3,445	312	316
Deferred tax valuation allowance [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at beginning of year	4,805	6,467	5,532
Charged to cost and expenses	2,010	-1,662	2,542
Charged to other accounts	12	0	-1,607
Deductions	0	0	0
Balance at end of year	$6,827	$4,805	$6,467