Condensed Consolidating Financial Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Millions | 3 Months Ended |
Mar. 31, 2019 | Mar. 31, 2018 |
Condensed Statements of Cash Flows, Captions [Line Items] | | |
Net cash flow provided by (used for) operating activities | $ 41.4 | $ 62.1 |
Capital expenditures | (18.1) | (16.8) |
Acquisitions | (7.5) | (4.1) |
MTA franchise rights | (5.4) | (1.4) |
Net proceeds from dispositions | 2.2 | 0.2 |
Return of investment in investee companies | 0.1 | 0 |
Net cash flow provided by (used for) investing activities | (28.7) | (22.1) |
Proceeds from long-term debt borrowings | 35 | 10 |
Proceeds from borrowings under short-term debt facilities | 15 | 57 |
Repayments of borrowings under short-term debt facilities | (20) | (45) |
Proceeds from shares issued under the ATM Program | 16.6 | 0 |
Taxes withheld for stock-based compensation | (7.6) | (6.5) |
Dividends | (51.8) | (51.1) |
Intercompany | 0 | 0 |
Net cash flow provided by (used for) financing activities | (12.8) | (35.6) |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 0.1 | (0.2) |
Net increase (decrease) in cash, cash equivalents and restricted cash | 0 | 4.2 |
Cash, cash equivalents and restricted cash, beginning of period | 54.1 | 48.3 |
Cash, cash equivalents and restricted cash, end of period | 54.1 | 52.5 |
Eliminations | | |
Condensed Statements of Cash Flows, Captions [Line Items] | | |
Net cash flow provided by (used for) operating activities | 0 | 0 |
Capital expenditures | 0 | 0 |
Acquisitions | 0 | 0 |
MTA franchise rights | 0 | 0 |
Net proceeds from dispositions | 0 | 0 |
Return of investment in investee companies | 0 | |
Net cash flow provided by (used for) investing activities | 0 | 0 |
Proceeds from long-term debt borrowings | 0 | 0 |
Proceeds from borrowings under short-term debt facilities | 0 | 0 |
Repayments of borrowings under short-term debt facilities | 0 | 0 |
Proceeds from shares issued under the ATM Program | 0 | |
Taxes withheld for stock-based compensation | 0 | 0 |
Dividends | 0 | 0 |
Intercompany | 0 | 0 |
Net cash flow provided by (used for) financing activities | 0 | 0 |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 0 | 0 |
Net increase (decrease) in cash, cash equivalents and restricted cash | 0 | 0 |
Cash, cash equivalents and restricted cash, beginning of period | 0 | 0 |
Cash, cash equivalents and restricted cash, end of period | 0 | 0 |
Parent Company | | |
Condensed Statements of Cash Flows, Captions [Line Items] | | |
Net cash flow provided by (used for) operating activities | (0.4) | (0.4) |
Capital expenditures | 0 | 0 |
Acquisitions | 0 | 0 |
MTA franchise rights | 0 | 0 |
Net proceeds from dispositions | 0 | 0 |
Return of investment in investee companies | 0 | |
Net cash flow provided by (used for) investing activities | 0 | 0 |
Proceeds from long-term debt borrowings | 0 | 0 |
Proceeds from borrowings under short-term debt facilities | 0 | 0 |
Repayments of borrowings under short-term debt facilities | 0 | 0 |
Proceeds from shares issued under the ATM Program | 16.6 | |
Taxes withheld for stock-based compensation | 0 | 0 |
Dividends | (51.2) | (50.4) |
Intercompany | 35 | 50.8 |
Net cash flow provided by (used for) financing activities | 0.4 | 0.4 |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 0 | 0 |
Net increase (decrease) in cash, cash equivalents and restricted cash | 0 | 0 |
Cash, cash equivalents and restricted cash, beginning of period | 0 | 0 |
Cash, cash equivalents and restricted cash, end of period | 0 | 0 |
Subsidiary Issuer | | |
Condensed Statements of Cash Flows, Captions [Line Items] | | |
Net cash flow provided by (used for) operating activities | (21.8) | (19.5) |
Capital expenditures | 0 | 0 |
Acquisitions | 0 | 0 |
MTA franchise rights | 0 | 0 |
Net proceeds from dispositions | 0 | 0 |
Return of investment in investee companies | 0 | |
Net cash flow provided by (used for) investing activities | 0 | 0 |
Proceeds from long-term debt borrowings | 35 | 10 |
Proceeds from borrowings under short-term debt facilities | 0 | 0 |
Repayments of borrowings under short-term debt facilities | 0 | 0 |
Proceeds from shares issued under the ATM Program | 0 | |
Taxes withheld for stock-based compensation | 0 | 0 |
Dividends | 0 | 0 |
Intercompany | (13.8) | 17.8 |
Net cash flow provided by (used for) financing activities | 21.2 | 27.8 |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 0 | 0 |
Net increase (decrease) in cash, cash equivalents and restricted cash | (0.6) | 8.3 |
Cash, cash equivalents and restricted cash, beginning of period | 12 | 10.2 |
Cash, cash equivalents and restricted cash, end of period | 11.4 | 18.5 |
Guarantor Subsidiaries | | |
Condensed Statements of Cash Flows, Captions [Line Items] | | |
Net cash flow provided by (used for) operating activities | 62.4 | 81.8 |
Capital expenditures | (15.5) | (14.5) |
Acquisitions | (7.5) | (4.1) |
MTA franchise rights | (5.4) | (1.4) |
Net proceeds from dispositions | 2.2 | 0.2 |
Return of investment in investee companies | 0.1 | |
Net cash flow provided by (used for) investing activities | (26.1) | (19.8) |
Proceeds from long-term debt borrowings | 0 | 0 |
Proceeds from borrowings under short-term debt facilities | 0 | 0 |
Repayments of borrowings under short-term debt facilities | 0 | 0 |
Proceeds from shares issued under the ATM Program | 0 | |
Taxes withheld for stock-based compensation | (7.6) | (6.5) |
Dividends | 0 | 0 |
Intercompany | (28.7) | (57.2) |
Net cash flow provided by (used for) financing activities | (36.3) | (63.7) |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 0 | 0 |
Net increase (decrease) in cash, cash equivalents and restricted cash | 0 | (1.7) |
Cash, cash equivalents and restricted cash, beginning of period | 1.4 | 3.7 |
Cash, cash equivalents and restricted cash, end of period | 1.4 | 2 |
Non-Guarantor Subsidiaries | | |
Condensed Statements of Cash Flows, Captions [Line Items] | | |
Net cash flow provided by (used for) operating activities | 1.2 | 0.2 |
Capital expenditures | (2.6) | (2.3) |
Acquisitions | 0 | 0 |
MTA franchise rights | 0 | 0 |
Net proceeds from dispositions | 0 | 0 |
Return of investment in investee companies | 0 | |
Net cash flow provided by (used for) investing activities | (2.6) | (2.3) |
Proceeds from long-term debt borrowings | 0 | 0 |
Proceeds from borrowings under short-term debt facilities | 15 | 57 |
Repayments of borrowings under short-term debt facilities | (20) | (45) |
Proceeds from shares issued under the ATM Program | 0 | |
Taxes withheld for stock-based compensation | 0 | 0 |
Dividends | (0.6) | (0.7) |
Intercompany | 7.5 | (11.4) |
Net cash flow provided by (used for) financing activities | 1.9 | (0.1) |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 0.1 | (0.2) |
Net increase (decrease) in cash, cash equivalents and restricted cash | 0.6 | (2.4) |
Cash, cash equivalents and restricted cash, beginning of period | 40.7 | 34.4 |
Cash, cash equivalents and restricted cash, end of period | $ 41.3 | $ 32 |