Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended | 24 Months Ended | |
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2015 | Jun. 30, 2012 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Period for performance awards, years | 3 years | | | | |
Performance awards earned, percentage payable as stock | 60.00% | | | | |
Performance awards earned, percentage payable as cash | 40.00% | | | | |
Weighted average exercise price of options | | | | | $ 20.31 |
Excess tax benefit from stock-based payment arrangements | $ 817 | $ (1,357) | | | |
Long-Term Management Incentive Compensation Plan [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares approved to be issued under plan | 500,000 | | | 500,000 | |
Shares issued | 215,082 | | | | |
Cash awards payable within current liabilities | $ 700 | 600 | | $ 700 | |
Cash awards payable within long-term liabilities | | 400 | | | |
Compensation cost | 600 | 900 | $ 1,200 | | |
Long-Term Management Incentive Compensation Plan [Member] | 2013-2015 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Compensation cost | $ 1,200 | | | | |
Stock Option Plans [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Period for performance awards, years | 10 years | | | | |
Compensation cost | | | $ 500 | | |
Options issued under stock option plans | | | 89,300 | | |
Weighted average exercise price of options | | | $ 20.31 | | |
Dividend yield | | | 2.50% | | |
Expected volatility | | | 35.40% | | |
Risk-free interest rate | | | 0.80% | | |
Expected life | | | 5 years | | |
Weighted average grant date fair value | | | $ 5.06 | | |
Excess tax benefit from stock-based payment arrangements | $ 400 | 400 | $ 200 | | |
Proceeds from Stock Options Exercised | $ 1,600 | 2,300 | $ 1,100 | | |
New Long-Term Management Incentive Compensation Plan [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares approved to be issued under plan | 700,000 | | | 700,000 | |
Compensation cost | $ 1,100 | 500 | | | |
New Long-Term Management Incentive Compensation Plan [Member] | 2015-2017 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Compensation cost | 1,000 | | | | |
New Long-Term Management Incentive Compensation Plan [Member] | 2014-2016 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Compensation cost | $ 1,100 | | | | |
New Omnibus Stock Plan [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares approved to be issued under plan | 700,000 | | | 700,000 | |
Compensation cost | $ 400 | $ 400 | | | |
Period options are excercisable | 10 years | | | | |
Options issued under stock option plans | 48,600 | 57,450 | | | |
Weighted average exercise price of options | $ 31.48 | $ 27.49 | | $ 31.48 | |
Dividend yield | 2.00% | 2.20% | | | |
Expected volatility | 29.90% | 32.60% | | | |
Risk-free interest rate | 1.60% | 1.50% | | | |
Expected life | | | | 5 years | |
Weighted average grant date fair value | $ 7.33 | $ 6.63 | | | |
Shares available for future grants | 595,400 | | | 595,400 | |
Proceeds from Stock Options Exercised | | | | $ 100 | |
Minimum [Member] | 2013-2015 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 9,000 | | | 9,000 | |
Minimum [Member] | 2015-2017 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 12,000 | | | 12,000 | |
Minimum [Member] | 2014-2016 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 17,000 | | | 17,000 | |
Target [Member] | 2013-2015 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 24,000 | | | 24,000 | |
Target [Member] | 2015-2017 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 31,000 | | | 31,000 | |
Target [Member] | 2014-2016 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 48,000 | | | 48,000 | |
Maximum [Member] | 2013-2015 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 39,000 | | | 39,000 | |
Maximum [Member] | 2015-2017 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 60,000 | | | 60,000 | |
Maximum [Member] | 2014-2016 [Member] | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | |
Shares available for future grants | 91,000 | | | 91,000 | |