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Long-term Equity-based Compensation - Activity Related to Nonvested Restricted Stock (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  |  | 12 Months Ended | 36 Months Ended
--- | --- | --- | --- | --- | --- | ---
Feb. 04, 2016 | Jan. 31, 2015 | Feb. 01, 2014 | Feb. 02, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Total fair value of DSUs that vested during the years |  |  |  |  | $ 0.1 | $ 0.2 | $ 0.1 |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Vested in Period, Total Fair Value |  |  |  |  | 1.4 | 3.6 | 4.1 |  |
Income tax benefit from share-based compensation |  |  |  |  | $ 0.5 | $ 1.2 | $ 1.4 |  |
Time Vested Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Nonvested Balance at Beginning of Year, Restricted Shares |  |  |  |  | 53,095 |  |  |  |
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 32.42 |  |  |  |
Grants in Period |  |  |  |  | 0 |  |  |  |
Grants in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 0.00 |  |  |  |
Vested in Period |  |  |  |  | (18,733) |  |  |  |
Vested in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 31.09 |  |  |  |
Forfeited in Period |  |  |  |  | (4,914) |  |  |  |
Forfeited in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 29.48 |  |  |  |
Nonvested Balance at End of Year, Restricted Shares |  |  |  |  | 29,448 | 53,095 |  |  |
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 33.77 | $ 32.42 |  |  |
Performance Based Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Performance period |  |  |  |  | 3 years |  |  |  |
Nonvested Balance at Beginning of Year, Restricted Shares |  |  |  |  | 110,625 |  |  |  |
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 39.28 |  |  |  |
Grants in Period |  |  |  |  | 0 |  |  |  |
Grants in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 0.00 |  |  |  |
Vested in Period |  |  |  |  | 0 |  |  |  |
Vested in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 0.00 |  |  |  |
Forfeited in Period |  |  |  |  | (59,225) |  |  |  |
Forfeited in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 36.81 |  |  |  |
Nonvested Balance at End of Year, Restricted Shares |  |  |  |  | 51,400 | 110,625 |  |  |
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 42.12 | $ 39.28 |  |  |
Reduction in share authorization if maximum performance level is met or exceeded (shares) |  |  |  |  | 538,500 |  |  |  |
Time Vested Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Nonvested Balance at Beginning of Year, Restricted Shares |  |  |  |  | 30,024 |  |  |  |
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 36.60 |  |  |  |
Grants in Period |  |  |  |  | 74,375 |  |  |  |
Grants in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 36.79 |  |  |  |
Vested in Period |  |  |  |  | (16,701) |  |  |  |
Vested in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 36.33 |  |  |  |
Forfeited in Period |  |  |  |  | (2,650) |  |  |  |
Forfeited in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 36.19 |  |  |  |
Nonvested Balance at End of Year, Restricted Shares |  |  |  |  | 85,048 | 30,024 |  |  |
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 36.84 | $ 36.60 |  |  |
Performance Based Restricted Stock Units [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Nonvested Balance at Beginning of Year, Restricted Shares |  |  |  |  | 61,875 |  |  |  |
Nonvested at Beginning of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 40.50 |  |  |  |
Grants in Period |  |  |  |  | 68,825 |  |  |  |
Grants in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 43.05 |  |  |  |
Vested in Period |  |  |  |  | 0 |  |  |  |
Vested in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 0.00 |  |  |  |
Forfeited in Period |  |  |  |  | (2,600) |  |  |  |
Forfeited in Period, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 41.68 |  |  |  |
Nonvested Balance at End of Year, Restricted Shares |  |  |  |  | 128,100 | 61,875 |  |  |
Nonvested at End of Year, Weighted Average Grant Date Fair Value (per share) |  |  |  |  | $ 41.85 | $ 40.50 |  |  |
Performance Period, 2015 to 2017 [Member] | Performance Based Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of additional shares to be granted if maximum performance level is met or exceeded |  |  |  |  | 67,625 |  |  |  |
Reduction in share authorization if maximum performance level is met or exceeded (shares) |  |  |  |  | 202,875 |  |  |  |
Performance Period, 2014 to 2016 [Member] | Performance Based Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Number of additional shares to be granted if maximum performance level is met or exceeded |  |  |  |  |  | 60,475 |  |  |
Reduction in share authorization if maximum performance level is met or exceeded (shares) |  |  |  |  |  | 181,425 |  |  |
Performance Period, 2012 to 2014 [Member] | Performance Based Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Stock issued during period, shares, share-based compensation, forfeited |  | 57,775 |  |  |  |  |  |  |
Performance Period, 2011 to 2013 [Member] | Performance Based Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Payout percentage for exceeding performance target |  |  |  |  |  |  |  | 118.00% |
Shares issued during the period |  |  | 9,014 |  |  |  |  |  |
Performance Period, 2010 to 2012 [Member] | Performance Based Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Payout percentage for exceeding performance target |  |  |  |  |  |  |  |  | 114.00%
Shares issued during the period |  |  |  | 6,996 |  |  |  |  |
Subsequent Event [Member] | Performance Period, 2013 to 2015 [Member] | Performance Based Restricted Stock [Member] |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |
Stock issued during period, shares, share-based compensation, forfeited | 51,400 |  |  |  |  |  |  |  |

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