Debt (Additional Information) (Details)			3 Months Ended		12 Months Ended
	Jun. 18, 2015 USD ($)	Jan. 22, 2015 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Jun. 17, 2015 USD ($)	Jul. 13, 2011 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity							$ 265,000,000
Interest expense on outstanding debt			$ 900,000	$ 800,000
Unused commitment fee			$ 100,000
Actual leverage ratio			1.42
Actual ICR			24.41
Capitalized debt issuance costs, net						$ 2,000,000
Amortization expense, debt issue costs			$ 100,000	100,000
Repayment of debt principal			$ 757,000	5,065,000
Capital lease, expiration date			2021
Capital lease obligation			$ 6,000,000
Amortization expense related to the capital lease			100,000	100,000
Capital lease accumulated depreciation			2,000,000		$ 1,900,000
Interest expense on capital lease			$ 100,000
Debt Instrument, Leverage Ratio, Maximum			2.00
Maximum
Debt Instrument [Line Items]
Dividends			$ 10,000,000
Credit Agreement
Debt Instrument [Line Items]
Variable rate lower range basis spread	37.50%
Variable rate higher range basis spread	75.00%
Line of credit, base reference rate description					The base reference rate is the greater of the prime rate; federal funds effective rate plus 50 basis points; or adjusted 1-month LIBOR plus 100 basis points.
Bank Term Loan
Debt Instrument [Line Items]
Revolving credit outstanding borrowings			125,000,000
Term loan debt			$ 52,900,000
Interest rate spread over variable rate (percent)			1.50%
Bank Term Loan | LIBOR
Debt Instrument [Line Items]
Interest rate spread over variable rate (percent)			0.50%
Amended Credit Facility
Debt Instrument [Line Items]
Credit agreement, agreement period (in years)	5 years
Maximum borrowing capacity	$ 350,000,000
Expansion option	$ 50,000,000
Leverage ratio	3.25
One-time leverage ratio maximum option	3.50
ICR covenant limit	3.00
Payments commencement date			Sep. 30, 2015
Repayment of debt principal			$ 700,000	5,000,000
Required payment on debt obligation within the next 12 months			3,800,000
Amended Credit Facility | Minimum
Debt Instrument [Line Items]
Unused commitment fee percentage	0.20%
Amended Credit Facility | Maximum
Debt Instrument [Line Items]
Unused commitment fee percentage	0.30%
Amended Credit Facility | Federal Funds Rate
Debt Instrument [Line Items]
Variable rate lower range basis spread	0.50%
Amended Credit Facility | LIBOR
Debt Instrument [Line Items]
Variable rate higher range basis spread	1.00%
Amended Credit Facility | Bank Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 55,000,000
Amended Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 295,000,000
Eurocurrency loans | Credit Agreement
Debt Instrument [Line Items]
Line of credit, LIBOR rate, minimum spread	137.50%
Line of credit, LIBOR rate, maximum spread	175.00%
Revolving Credit Facility | Arlon
Debt Instrument [Line Items]
Proceeds from line of credit		$ 125,000,000		$ 125,000,000
Standby Letters of Credit
Debt Instrument [Line Items]
Irrevocable standby letters of credit			1,200,000.0		$ 1,200,000.0
Revolving credit outstanding borrowings			0		$ 0
Interest Rate Swap | Bank Term Loan
Debt Instrument [Line Items]
Term loan debt			$ 8,100,000