Fair Values of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Estimated Fair Value of Outstanding Debt Balances

The estimated fair value of the Company’s outstanding debt balances (including current portion) as of September 30, 2016 and December 31, 2015 is set forth below (in thousands):

	September 30, 2016				December 31, 2015
	Carrying		Fair		Carrying		Fair
	Value		Value		Value		Value
Borrowings under Credit Agreement:
Revolving credit facility	$	15,000	$	15,000	$	—	$	—
Term loan facility		—		—		70,000		70,000
2015 Term Loan		—		—		185,000		185,000
4.97% Series A Senior Notes		300,000		288,203		300,000		279,635
4.27% Series B Senior Notes		300,000		270,849		300,000		258,806
Total debt	$	615,000	$	574,052	$	855,000	$	793,441