Debt - Long Term Debt (Parenthetical) (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Jul. 27, 2016 |
Dec. 31, 2015 |
Jan. 29, 2015 |
Nov. 09, 2012 |
---|---|---|---|---|---|
6.875 % Due 2020 [Member] | |||||
Long term Debt [Abstract] | |||||
Interest rate | 6.875% | ||||
6.125% Due 2022 [Member] | |||||
Long term Debt [Abstract] | |||||
Interest rate | 6.125% | ||||
Notes Payable to Banks [Member] | Term Loans [Member] | |||||
Long term Debt [Abstract] | |||||
Debt financing costs and discount | $ 6,592 | $ 8,715 | |||
Senior Subordinated Notes [Member] | 6.875 % Due 2020 [Member] | |||||
Long term Debt [Abstract] | |||||
Debt financing costs and discount | $ 4,295 | $ 5,223 | |||
Interest rate | 6.875% | 6.875% | 6.875% | ||
Senior Subordinated Notes [Member] | 6.125% Due 2022 [Member] | |||||
Long term Debt [Abstract] | |||||
Debt financing costs and discount | $ 2,402 | $ 2,786 | |||
Interest rate | 6.125% | 6.125% | 6.125% | ||
Senior Subordinated Notes [Member] | 5.625 % Due 2024 [Member] | |||||
Long term Debt [Abstract] | |||||
Debt financing costs and discount | $ 15,090 | ||||
Interest rate | 5.625% | 5.625% |