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Debt (Details Textual)				1 Months Ended		12 Months Ended
Debt (Details Textual)	Apr. 14, 2022	Apr. 15, 2019 USD ($)	Oct. 31, 2017 USD ($)	Apr. 30, 2019 USD ($)	Nov. 30, 2017 USD ($)	Dec. 31, 2019 USD ($) Installment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Debt Instrument, Outstanding Amount						$ 1,138,871,000	$ 971,043,000
Repayment of debt						220,000,000	8,000,000	$ 150,000,000
Debt financing cost and fees						8,076,000	3,537,000
Loss on extinguishment of debt						(9,150,000)		(1,708,000)
Derivative instrument, notional amount					$ 650,000,000
Derivative instrument, purchase price					$ 3,100,000
Derivative instrument, expiration date					Dec. 31, 2020
LIBOR exceeds ceiling rate					2.25%
Payments or receipts exchanged on interest rate cap					$ 0
Interest rate derivative, at fair value						$ 0	5,000,000
Revolving Credit Facility [Member] \| LIBOR rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						2.50%
Revolving Credit Facility [Member] \| LIBOR rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						3.00%
Revolving Credit Facility [Member] \| Base rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						1.50%
Revolving Credit Facility [Member] \| Base rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						2.00%
Former Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt								$ (1,700,000)
Repayments of Lines of Credit			$ 173,400,000
Term Loan [Member] \| LIBOR rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						3.00%
Credit Facility [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate						5.30%
Debt Instrument, Maturity Date						Oct. 20, 2024
Repayment of debt		$ 18,000,000		$ 18,000,000
Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Beneficial Ownership Threshold						50.00%
Credit Facility [Member] \| Federal Funds Effective Swap Rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						0.50%
Credit Facility [Member] \| LIBOR rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						1.00%
Credit Facility [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			100,000,000				$ 200,000,000
Line of Credit Facility, Undrawn						$ 200,000,000
Debt Instrument, Base Floor Rate						1.00%
Line of Credit Facility, Expiration Date						Oct. 20, 2022
Credit Facility [Member] \| Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage						0.375%
Credit Facility [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage						0.50%
Credit Facility [Member] \| Letters of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Outstanding Amount						$ 0
Credit Facility [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 800,000,000
Debt Instrument, Outstanding Amount						$ 772,000,000
Debt Instrument, Base Floor Rate						1.75%
Debt Instrument, LIBOR Floor Rate						0.75%
Debt Instrument, Number of Quarterly Payments \| Installment						27
Debt Instrument, Periodic Payment						$ 2,000,000
Debt Instrument, Commencement Date of Quarterly Payments						Mar. 31, 2018
Debt Instrument, Final Installment						$ 746,000,000
Credit Facility [Member] \| Term Loan [Member] \| Base rate [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate						2.00%
Senior Secured First Lien Credit Facility [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Borrowings as Percentage of Revolving Commitment to Contain Financial Covenant Regarding Maximum Net Leverage Ratio						30.00%
Senior Unsecured Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 375,000,000
Debt instrument interest stated percentage		7.625%
Debt instrument frequency of periodic payment		semi-annually
Debt financing cost and fees		$ 6,700,000
Second Lien Term Loan [Member]
Debt Instrument [Line Items]
Repayment of debt		$ 200,000,000
Senior Notes due 2026 [Member]
Debt Instrument [Line Items]
Debt instrument redemption description						The 2026 Notes may be redeemed, in whole or in part, at any time during the 12 months beginning on April 15, 2022 at a redemption price of 103.813%, during the 12 months beginning on April 15, 2023 at a redemption price of 101.906%, and at any time on or after April 15, 2024 at a redemption price of 100%, in each case plus accrued and unpaid interest, if any, thereon to the redemption date.
Senior Notes due 2026 [Member] \| Scenario, Forecast [Member]
Debt Instrument [Line Items]
Debt instrument repurchase price percentage	101.00%
Senior Notes due 2026 [Member] \| Debt Instrument, Redemption, Period One [Member] \| Scenario, Forecast [Member]
Debt Instrument [Line Items]
Debt instrument redemption price percentage	107.625%
Senior Notes due 2026 [Member] \| Debt Instrument, Redemption, Period One [Member] \| 12 Months Beginning on April 15, 2022 [Member]
Debt Instrument [Line Items]
Debt instrument redemption price percentage	103.813%
Debt instrument redemption period start date	Apr. 15, 2022
Senior Notes due 2026 [Member] \| Debt Instrument, Redemption, Period Two [Member] \| Scenario, Forecast [Member]
Debt Instrument [Line Items]
Debt instrument redemption price percentage	100.00%
Senior Notes due 2026 [Member] \| Debt Instrument, Redemption, Period Two [Member] \| 12 Months Beginning on April 15, 2023 [Member]
Debt Instrument [Line Items]
Debt instrument redemption price percentage	101.906%
Debt instrument redemption period start date	Apr. 15, 2023
Senior Notes due 2026 [Member] \| Debt Instrument, Redemption, Period Three [Member] \| On or After April 15, 2024 [Member]
Debt Instrument [Line Items]
Debt instrument redemption price percentage	100.00%
Debt instrument redemption period start date	Apr. 15, 2024
Senior Notes due 2026 [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Beneficial Ownership Threshold						50.00%
Senior Notes due 2026 [Member] \| Maximum [Member] \| Scenario, Forecast [Member]
Debt Instrument [Line Items]
Debt instrument redemption percentage	40.00%
Senior Secured Second Lien Credit Facility [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Loss on extinguishment of debt				(5,500,000)
Debt modification expenses				$ 3,700,000