Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Statement of Cash Flows [Abstract]
Payments for (Proceeds from) Tenant Allowance	$ 1,622	$ 0
Operating activities:
Net income	(12,301)	230
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation	5,707	5,012
Deferred income taxes	5,130	823
Stock-based compensation	1,156	1,349
Loss on disposition	0	310
(Gain) Loss on disposal of assets, net	120	73
Changes in operating assets and liabilities:
Accounts receivable, net	(13,048)	(1,312)
Prepaid expenses and other current assets	133	(4,043)
Accounts payable	5,478	(482)
Accrued compensation and related expenses	2,725	13,738
Accrued expenses and other current liabilities	(3,925)	(1,022)
Income taxes prepaid/payable	(2,937)	(1,565)
Other non-current assets	2,985	(150)
Other non-current liabilities	(587)	(717)
Net cash used in operating activities	(7,742)	12,244
Investing activities:
Additions to property and equipment	(4,475)	(4,768)
Acquisition-related payment	(2,108)	0
Proceeds from disposition	120	360
Payments for (Proceeds from) Other Investing Activities	(7)	(16)
Net Cash Provided by (Used in) Investing Activities	(6,456)	(4,392)
Financing activities:
Dividends paid to shareholders	0	(5,114)
Stock repurchased under stock repurchase program	(5,608)	0
Borrowings on credit facilities	80,592	10,601
Repayments on credit facilities	(73,322)	(8,813)
Payment of debt issuance costs	(28)	0
Common shares withheld for taxes	(48)	(287)
Excess tax benefit from share-based compensation awards	0	53
Net Cash Provided by (Used in) Financing Activities	1,746	(3,560)
Effect of exchange rate changes on cash and cash equivalents	195	(1,374)
Net decrease in cash and cash equivalents	(12,257)	2,918
Cash and cash equivalents at beginning of period	16,932	36,324
Cash and cash equivalents at end of period	4,675	39,242
Cash paid for interest	308	76
Cash paid for income taxes, net	(862)	2,563
Proceeds from (Repayments of) Bank Overdrafts	$ 160	$ 0