Acquisitions - Additional Information (Detail) (Paulin [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended	12 Months Ended
	Feb. 19, 2013	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Paulin [Member]
Business Acquisition [Line Items]
Aggregate purchase price, cash paid	$ 103,416
Date of acquisition		Feb. 19, 2013
Revenues			$ 146,389	$ 145,700