Income Taxes - Summary Of Difference Between Statutory Rate for Federal Income Tax and Effective Income Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Line Items]
Income tax expense calculated at the federal statutory rate		$ (7,363)	$ 7,685	$ (2,740)
State and local taxes, net of federal benefit		219	912	487
Tax on foreign earnings, net of tax credits and deductions		(261)	(26)	(330)
Change in valuation allowance		0	0	0
Goodwill impairment		0	0	2,106
Stock-based awards		332	(534)	778
Other		730	174	185
State/Local tax credits		(573)	(1,049)	(931)
Change in liability for uncertain tax positions		249	1,212	1,250
Other		(36)	158	38
Income Tax Expense (Benefit)		$ (6,703)	$ 8,532	$ 843
Income tax expense calculated at the federal statutory rate		35.00%	35.00%	35.00%
State and local taxes, net of federal benefit		(1.00%)	4.20%	(6.20%)
Tax on foreign earnings, net of tax credits and deductions		1.20%	(0.10%)	4.20%
Change in valuation allowance		0.00%	0.00%	0.00%
Goodwill impairment		0.00%	0.00%	(26.90%)
Stock-based awards		(1.60%)	(2.40%)	(9.90%)
Other		(3.50%)	0.80%	(2.40%)
State/Local tax credits		2.70%	(4.80%)	11.90%
Change in liability for uncertain tax positions		(1.20%)	5.50%	(16.00%)
Other		0.20%	0.70%	(0.50%)
Effective Income Tax Rate Reconciliation, Percent		31.80%	38.90%	(10.80%)
Predecessor
Income Tax Disclosure [Line Items]
Income tax expense calculated at the federal statutory rate	$ (78)
State and local taxes, net of federal benefit	208
Tax on foreign earnings, net of tax credits and deductions	(440)
Change in valuation allowance	789
Goodwill impairment	0
Stock-based awards	278
Other	296
State/Local tax credits	(208)
Change in liability for uncertain tax positions	169
Other	0
Income Tax Expense (Benefit)	$ 1,014
Income tax expense calculated at the federal statutory rate	35.00%
State and local taxes, net of federal benefit	(93.80%)
Tax on foreign earnings, net of tax credits and deductions	197.80%
Change in valuation allowance	(354.30%)
Goodwill impairment	0.00%
Stock-based awards	(125.20%)
Other	(133.10%)
State/Local tax credits	93.60%
Change in liability for uncertain tax positions	(76.10%)
Other	0.00%
Effective Income Tax Rate Reconciliation, Percent	(456.10%)